Best RV Water Filter – Inline Filtration Systems for RVs Reviewed

RV4Campers.com is reader-supported. When you buy through links on our site, we may earn an affiliate commission. Learn more

Whether you’re getting bits of sediment and murky colored water from your faucet or suffering with an off-putting chemical odor or chlorine taste, installing the best RV water filter is a simple and effective way to improve the quality of your water on board your RV.

Many RV water filters are easy to install, and will enable you to enjoy safe, clean-tasting water wherever you hook up. But if you’re new to water filters, navigating the range of models available can be a headache.

To help you find the perfect match for your RV, we have reviewed nine of the best RV water filters on the market, and also included a useful buying guide so that you can make the right choice.

What is an RV Water Filter?

An RV water filter is an essential piece of kit for improving the quality of your water.

Installed between your water supply and water tank, the filter removes chlorine, sediment, and other contaminants that could otherwise damage your RV plumbing, make your water taste and smell undrinkable, or even make you ill.

RV water filters are available in a range of types, all with different capabilities. Some are recommended for removing chlorine and improving your water’s taste when you’re hooked up to a municipal supply.

Others are essential for removing bacteria and microorganisms that could otherwise pose a threat to your health, as well as other versions that remove sediment that could damage your system.

Best RV Water Filters

With so many options to choose from, finding the best RV water filter isn’t always an easy task. Save yourself time and effort with our top RV water filter reviews.

Best Overall Inline RV Water Filter

Camco TastePure RV Water Filter with Flexible Hose Protector

Camco Taste Pure RV Water Filter

Buy from Amazon

Looking for a budget-priced RV water filter that is easy to install and will last you all camping season? You won’t find many others better than the Camco TastePure. Its in-line design streamlines water flow, while the included flexible hose protector minimizes kinking and reduces the strain on your connections.

With its 2.5 gallon per minute flow rate, this versatile water filter can be attached to any standard water hose for clean water in just minutes. Thanks to its KDF filter, you won’t have to worry about it promoting bacterial growth when it’s not in use, while its low lead certification – NSF/ANSI 362 means you can install this filter with confidence. Also, being made in the USA from Camco, you can be sure you’re getting the real deal.

Its Granular Activated Carbon (GAC) filter not only improves your water’s taste, it also reduces odor, chlorine, and sediment. Capable of removing aluminum, cadmium, iron, lead, and mercury, amongst others, this handy RV water filter is a must for any RV owner to protect your health and that of your family and pets.

On average, this model should last you around three months, depending on your water source. Plenty long enough for an entire camping season. It is also one of the lowest-priced versions around.

Made in the USA, easy to install, and highly effective, if you are looking for a low-cost RV water filter for your next camping trip, this is the one to go for.

Pros – Things we liked
Included flexible hose protector
2.5 GPM flow rate
KDF filter
Made in the USA
Lasts around three months
Cons – Things we didn’t like
May need spare O rings

Best RV Water Filter for Small Budgets

Culligan RV-800 Exterior Pre-Tank Recreational Vehicle Water Filter with Hose

Culligan Recreational Vehicle Water Filter

Buy from Amazon

Another good budget model, the Culligan RV-800 includes a flexible hose to improve water flow and prevent filter damage.

Easy to install, simply connect it to your exterior 12-inch water hose, it is compatible with all ¾-inch hose couplings. While its one-gallon-per-minute flow rate isn’t the fastest, it will more than suffice for your cooking, dishwashing, and drinking needs.

This granular activated carbon filter has been KDF tested and NSF certified. Install it to improve your drinking water’s taste and smell, as well as reducing sediment, and chlorine. Heavy metals, iron, hydrogen sulfide, and bacteria are all reduced thanks to its KDF filtration, with bacteriostatic technology to limit bacterial growth.

Unfortunately, there is no data available on this water filter’s micron rating, so you may wish to contact the manufacturer directly for further information before making your purchase.

This RV water filter has a cartridge life of up to 2,000 gallons, although you may need to replace it sooner depending on your water quality. However, regardless of usage, it is recommended that you replace it seasonally for the best performance.

Complete with a five-year warranty, the RV-800 Water Filter by Culligan is a hassle-free, easy to use, slimline model that is also a great budget buy.

Best RV Water Filter Cartridge

Pentair Everpure ADC Quick Change Cartridge

Pentair EverPure ADC Quick Change Cartridge

Buy from Amazon

If your RV is fitted with a QL2 or QL3 Everpure Water Treatment System, then you’ll want to opt for one of these ADC Quick Change Cartridges to keep your water clean and healthy. Installation is very simple, requiring no tools whatsoever.

This water purification system provides high levels of protection against viruses, bacteria, and waterborne cysts, such as Giardia Lamblia. If you travel far and wide in your motorhome, staying off the beaten track, then you’ll need the extra protection afforded by this super-chlorination process to prevent intestinal illness.

With its exclusive Micro-Pure filter, this replacement cartridge considerably removes the taste of chlorine, as well as odors, dirt, asbestos, and rust. Removing particles as small as half-a-micron, this is a high-performance RV water filter for extra clean drinking water.

Certified and tested by the NSC, this filter is also treated with bacteriostatic to reduce bacterial growth on your filter. This ensures that the cartridge constitutes to give you high-quality filtered water throughout its lifespan. Each cartridge lasts for 700 gallons or up to one year depending on usage, making this model a good choice for full-timers, or anyone who likes to use their RV throughout the year.

For peace of mind even when you’re visiting places off the beaten track, you need a superior performance filter that can reduce the chances of you or your family falling ill because of unsafe water. This water treatment system can do just that, more than validating its higher price.

Best RV Water Filter Kit

Camco EVO Premium RV Water Filter

Camco EVO Premium RV Water Filter

Buy from Amazon

For filtering water at campsites, the EVO Premium RV Water Filter by Camco makes an excellent choice. This kit includes filter housing, an extension hose, and a replaceable polypropylene filter cartridge, providing everything you’ll need to set up your RV water filter system.

This filter has a universal fit type, making it compatible with any standard water hose. Its in-line design streamlines water flow and also allows for a fast and easy installation. Water passes through a porous shell that filters out particles as small as five microns. Thanks to its GAC filtration, bad tastes, odors, and chlorine are all reduced, as well as sediments, bacteria, and heavy metals.

Its KDF layer prevents bacterial growth when the filter is not in use, for great tasting water for longer periods. The filter lasts for one camping season and is easily replaced when you notice a reduction in efficacy and water flow.

While there are other filter systems out there that remove finer particles, if you generally visit campsites with good facilities, then this kit will be just fine for your needs. To remove bad odors, reduce chlorine, and improve your drinking water’s taste, this comprehensive kit by Camco is a good all-round choice and a great starter set.

Best Inline RV Water Filter for Removing Chlorine

Boogie Blue Plus Garden Hose Water Filter for RV and Outdoor Use

Boogie Blue Garden Hose Water Filter for RV

Buy from Amazon

While it’s considerably more expensive than your standard in-line RV water filter, the Boogie Blue Plus is a good choice if you are looking for a highly effective way to remove chlorine and chloramine from your drinking water.

This filter fits any ¾-inch standard water hose and installation is very easy. It has a maximum stated flow rate of 4.5 gallons-per-minute, although, in reality, you’ll probably find it to be considerably slower, but no slower than most standard models.

Thanks to its dual catalytic-carbon and KDF membrane, this premium RV water filter reduces the concentration of heavy metals and can remove 99% of chlorine, plus 87% of chloramine from your drinking water. It also reduces the amount of pesticides, toxins, and volatile compounds, for healthier, purer water.

Filtering particles down to 5 microns, there are other models that provide higher levels of filtration, which can make its high price seem less justifiable. What’s more, there is no information available about any certifications that this filter has, unlike many other cheaper alternatives.

Boasting a high 45,000-gallon output, this filter still needs to be changed every season depending on usage. Manufactured in the USA, Boogie Blue Plus is an effortless way to improve the quality of your drinking water in your RV, removing the additives added by municipal water treatment facilities, for cleaner, better-tasting water.

Best RV Water Filter for Filtration

Hydro Life External Filter Kit

Hydro Life External Water Filter Kit

Buy from Amazon

Specially designed for RVs with an external water hook up, the Hydro Life External Filter Kit is a popular option for cleaner tasting, purer water when RVing. Including an Exterior 7 outer with a Series 5 cartridge, this model virtually eliminates all traces of chlorine and lead.

This adaptable filter is suitable for permanent installation. It is straightforward to set up and once installed you can change the cartridge as needed without any tools required, thanks to the garden hose connectors. With a maximum flow rate of 2.5 gallons-per-minute, this RV water filter is ideal for your cooking, dishwashing, and drinking needs.

Thanks to its fine mesh granular activated carbon filters, more contaminants are filtered out than standard carbon filters for cleaner, purer water. Particles as small as five microns are removed and the EPA-approved filter media KDF helps to ensure that bacterial growth is greatly reduced.

This filter is also NSF certified, as well as being manufactured in the USA by a well-known brand you can trust. It is recommended that you change the filter annually for best results, depending upon your water type.

This makes this rechargeable kit excellent value for money and a good choice for full-timers or anyone who uses their RV extensively year-round.

Best RV Water Filter for Flow Rate

Clearsource Premium RV Water Filter System

Clearsource Premium RV Water Filter System

Buy from Amazon

The Clearsource Premium RV Water Filter System is a dual-stage filtration model that is specifically designed for use with RVs. If you are looking for a superior, high-quality filter for cleaner, purer water, this model is the one to go for.

Thanks to its robust, highly durable construction, complete with a built-in stand, this kit will last for a very long time. All of the fittings included are made from stainless steel for durability and better sanitary conditions. Oversized canisters, located within the powder-coated stand-alone chassis, improve water flow with a maximum rate of 6.5 gallons-per-minute.

During the first stage, particles as small as five microns are removed, improving taste, removing odors, and reducing sediment, chlorine, and other containers such as VOCs. Next the second stage provides 0.2-micron protection, removing or reducing bacteria and cysts, for example E. Coli and Giardia. NSF certified, the entire system is a great way to ensure peace of mind when using your RV.

The filters generally last for around 2,000 gallons, or annually for occasional campers. For more regular use or full-timers, you’ll probably want to replace around three to four times per year to ensure optimum results.

While this system doesn’t come cheap, if you are looking for a stand-alone RV water filtration system that you can simply hook up to your water hose, this model makes an unbeatable choice in terms of performance.

Editors Choice for Best Value RV Filter

Watts Inline Water Filter 20,000 Gallon Capacity

Watts Inline Water Filter

Buy from Amazon

If you just need a water filter for improving taste and reducing chlorine odor, then this version by Watts will be sufficient for your needs.

Compatible with all standard ¼-inch water lines, this filter is a popular choice thanks to its easy installation. The ten-inch inline filter comes complete with two 1.4-inch brass connectors, so you’ll be ready to install it straight away.

Thanks to its KDF filter, this model reduces sediment and other particles, so you won’t get that funny taste or smell in your drinking water or ice cubes. It can also help to reduce the build-up of scale in your RV kitchen appliances. NSF certified, lead-free and ANSI Standard 42, this filter has a wealth of certificates to prove its safety.

With a lifespan of 20,000 gallons or six months, it is a good choice for full-timers or frequent RVers. It’s also not bad value for money. If you don’t really need to filter out small particles and bacteria, as your water hook ups are from safe sources, then why pay extra? This basic model will remove or reduce chlorine and sediment for cleaner tasting, better-smelling water in your RV.

Best “Made in the USA” RV Water Filter

USA Adventure Gear 3-Stage RV Inline Water Filter

USA Adventure Gear RV Inline Water Filter

Buy from Amazon

This in-line RV water filter by USA Adventure Gear uses an innovative three-stage process to remove impurities from your drinking water when RVing. It uses standard garden water hose connections for easy installation and has a flow rate of up to five gallons per minute.

NSF 42 and 61 certified, this three stage filter benefits from KDF, GAC, and Quantum Filtration. Water passes through a 20-micron filter, removing sediment and large impurities. The KDF layer keeps bacteria from forming and multiplying when your system is not in use. The Granular Activated Carbon filter removes odors, bad tastes, chlorine, and organic compounds for better tasting, purer water.

One of the newest innovations in water filtration, the Quantum stage uses a catalyst with activated surfaces to quickly remove bacteria even at high flow volumes. However, note that this system is not intended for use with water sources that are microbiologically unsafe or of unknown quality.

Manufactured to last for up to one year, or 25,000 gallons, this long-lasting RV water filter is made in the USA. While it is not the cheapest, its long lifespan and innovative filtration system make it a popular choice if you are willing to spend a higher amount.

Compare the Best RV Water Filters

Table Comparing the Top 5 RV Washer Dryers
Image Title Price Rating Buy
OpenCamco Tastepure RV Water Filter Compare Camco TastePure RV Water Filter
$
94
Buy on Amazon
OpenCulligan Recreational Vehicle Water Filter Compare Culligan Recreational Vehicle Water Filter
$
92
Buy on Amazon
OpenPentair Everpure ADC Quick Change Cartridge Compare Pentair Everpure ADC Quick Change Cartridge
$$
96
Buy on Amazon
OpenCamco Evo Premium RV Water Filter Compare Camco EVO Premium RV Water Filter
$$$
92
Buy on Amazon
OpenBoogie Blue Garden Hose Water Filter for RV Compare Boogie Blue Garden Hose Water Filter for RV
$$$
90
Buy on Amazon
OpenHydro Life External Water Filter Kit Compare Hydro Life External Filter Kit
$$$
90
Buy on Amazon
OpenClearsource Premium RV Water Filter System Compare Clearsource Premium RV Water Filter System
$$$$$
96
Buy on Amazon
OpenWatts Inline Water Filter Compare Watts Inline Water Filter
$$
94
Buy on Amazon
OpenUSA Adventure Gear RV Inline Water Filter Compare USA Adventure Gear RV Inline Water Filter
$$$
84
Buy on Amazon

Buyer’s Guide to Buying the Best RV Water Filter

To help you to find the best RV water filtration system for your setup, here’s our RV Water Filter Buying Guide. We’ll take a closer look at all of the aspects that you’ll need to bear in mind when choosing the best model for your RV.

Price

RV water filters come in at a wide variety of prices. Unfortunately, price isn’t always the best indicator of higher quality, so caution is needed. Don’t just go off price alone. That said, obviously higher performance models use premium resources that cost more.

Our advice, if you are going to be using your RV at established campsites with water hookups then go for a lower-priced model with decent fittings to ensure fewer leaks and an easier installation. If you have some doubts about where you’ll be traveling or are extra susceptible to chlorine or any suspected contaminants, then spend more and go for a model that has greater filtration qualities.

You will also need to factor in your usage. If you RV a lot or are full-timers, a longer-lasting filter that costs a little more could work out cheaper in the long run.

Likewise, if you are just using your RV seasonally at campsites, you won’t want to spend a lot more on a longer-lasting version, as most will need to be replaced annually anyway.

Ease of use/installation

Make sure that your RV water filter is easy to set up initially, as well as when it comes round to changing the cartridges in a reusable model. You’ll want to look out for models that are suitable with standard hose fittings.

For extra ease of use, some models come with built-in stands, or you can purchase ones additionally. If you travel a lot or are going to be using your RV in the depths of winter then you definitely need a model with good fittings that are easy to connect as you will have to unfit and refit your filter a lot of times. So, make sure the fittings are going to be durable enough, as well as easy to install.

National Sanitation Foundation (NSF)

A non-profit organization, NSF has developed standards for food and sanitary safety, so you can be sure that certain products are safe for use and won’t negatively impact your health.

When you purchase a water filter, you’ll want to make sure that its components are NSF-certified to ensure safety and efficacy. For example, if you select a model with an NSF/ANSI certification 42, you can be certain that the filter will fulfil its claims to reduce aesthetic impurities, such as the taste and odor of chlorine.

It is important that manufacturers backup their claims with independent testing and certification. Purchasing RV filters that feature one or several NSF certificates ensure that you are purchasing a product that does what it says.

What’s in Your Water?

Obviously, when you’re RVing all over the country you’ll want to pick a filter for all eventualities. However, if you tend to stay in the same places regularly, stick to well regulated local area campsites, or keep your RV parked up, then you can look at matching your RV filter to your water type.

To do so, you will want to test the water before purchasing your RV water filter. This will allow you to take into account any specific impurities that you’ll need to be able to remove. For campsites and locations connected up to city water supplies, you’ll often want to remove chlorine for better tasting and smelling water.

If you’re venturing into the unknown, or camping where well water is standard, then you’ll need to be more careful. While certified well water can be perfectly fine, remember that the water’s composition can alter considerably over time.

In these cases, you’ll want to opt for a multi-stage filtration system that can help to reduce the amount of bacteria, viruses, and cysts, as well as heavy metals and sediments.

Flow Rate – Amount of Water Needed

Check out the flow rate of your RV water filter. If you are filtering all of your water, a good choice for reducing scale build up, you’ll need to make sure that you have a sufficient flow rate for showering.

If, on the other hand, you tend to use the campsite showers, you may want to opt for a small under sink water filter to just filter your tap water for cooking and drinking.

Micron Ratings

A micron is a unit of measurement that is equal to one-millionth of a meter. To put that into perspective the average human hair is around 70 microns in diameter, give or take 20, depending on thickness.

Most RV water filter systems are capable of filtering particles as small as five microns wide. While smaller micron-rated filters will be able to trap more particles, once you get below five microns, your filter is going to clog up much more quickly and a two-stage filtration system is recommended.

A lot of bacteria measure around one micron, so choosing a filter rated below this size will filter out a lot of potentially unhealthy contaminants, and even some viruses.

However, if you have strong doubts about a water source, you should use bottled water. If that isn’t possible, be sure to boil water before filtering in order to kill viruses, bacteria, and protozoa.

Filter Size

The larger your filter size, the more water that will be able to flow through at a faster rate.

If you’re contemplating full-timing or use your RV frequently for long periods of time, you should opt for jumbo RV water filter canisters over standard versions. This will allow you to filter more water faster and more effectively.

They also tend to have a longer lifespan for less frequent replacements.

Water Filter Style

RV water filters are available in two forms, with in-line or canister models. Here’s what you need to know to decide which style best suits your needs.

In-line – In-line RV water filters are a good choice for occasional RVers.

They have good taste-improving and odor-removal capacities but are less suitable for removing large amounts of sediment. They also tend to have lower flow rates and need changing more often.

However, they are less expensive and if you just need to remove that chlorine taste and smell from your water, they are a convenient, cost-effective choice.

Canister – Canister RV water filters feature single, double, or even triple filtration stages. You have more options to filter out smaller particles with more filters. This prevents your unit from clogging up too quickly and gives it a longer lifespan.

They are a good option for sediment-laden water, although you can often customize your replaceable canisters from a range of different models to ensure that your system is best adapted to your individual needs.

Types of RV Water Filtration

There are several different types of RV water filtration systems, let’s take a look at some of the most popular models, to help you decide which one best suits your setup and needs.

Carbon Filters

The best option for removing chlorine and chloramine, getting rid of that chemical taste and smell that you often get with city water.

Carbon filters can either be simple versions with limited efficacy, or you could go for a GAC model, a granulated activated carbon filter.

Aside from removing chlorine, they are also more effective at removing sediment, pesticides, and metals than basic carbon ones.

Sediment Filters

Sediment filters are essential if you are not hooked up to a standard municipal water supply.

Tiny particles of dirt and debris, sediment won’t only turn your water a funny color, it can also wreak havoc with your RV plumbing. Sediment RV water filters are best installed before any other filters to allow for better efficacy and to prevent clogging.

Ultraviolet Purification

UV purification RV water systems use ultraviolet rays to kill off microorganisms present in your drinking water, so they don’t go on to infect you.

Bear in mind that while this results in sterilized water, it won’t remove any odors, taste, or filter out any particles. UV systems are a good choice to purify your water in your tank after filtration.

Reverse Osmosis Systems

If you are looking for the purest water, free from almost all dissolved solids, then you need to invest in a reverse osmosis system for your RV.

A sediment pre-filter removes dirt and larger particles, followed by a special membrane that removes salts and dissolved solids, before a final carbon filter stage that improves taste and smell.

Not only does the equipment for this process cost a lot of money, it is also fairly bulky, taking up a lot of space, as well as necessitating a drain connection to get rid of the considerable amount of wastewater.

However, if your pockets and your RV are both large enough, then you may like to consider investing in a reverse osmosis system.

Final Thoughts

The huge number of RV water filters available can make finding the best model a little overwhelming.

Rather than relying upon trial and error, and potentially ruining your vacation, focus on your needs and reputable brands with NSF certification to ensure you find the best RV water filter for your motorhome.

If you are looking for a great all-rounder that’s made in the USA at a budget-price, then you won’t find many better than the Camco TastePure range, complete with a granulated activated carbon filter for improved taste and smell, as well as a bacterial inhibiting KDF layer and NSF certification. This model is also easy to install and lasts long enough for a whole camping season.

Looking to spend quite a bit more for a more durable setup that lasts longer? The popular Clearsource Premium RV Water Filter System is a good choice for full-timers or frequent trips. Thanks to its dual stage filtration process, larger particles are removed during stage one, while the second part traps containments as small as 0.2 microns for extra clean water, wherever you’ve parked up.

If you want an effective way to remove that chlorine taste and smell from your water hookup, take a look at the Watts In-line Water Filter. With its 20,000 gallon capacity and NSF/ANSI 42 certification, you can be sure that this is an effective model to reduce chlorine odor and taste. It’s also a good choice for removing sediment, while its KDF filter prevents bacterial buildup when it’s not in use.

About Karan Riley

I am the owner and main contributor to RV4Campers. I first got bit by the RVing bug when I joined a friend who was into Van Life for weekend getaways. It became apparent very quickly that this was a style of life I enjoyed and wanted more of, so it wasn't long before I had my own travel trailer. I didn't have a lot of money to throw around back then so I did lots of research into all the gear and gadgets. And this is how my RV passion exploded, I've now spent countless hours playing around with many different bits of kit and reading user manuals. And it's this wealth of knowledge I bring to RV4Campers.