Before you decide upon which RV water filter best fits your needs, it’s important to establish how much clean water you need. Do you want all of your water to be filtered or just your drinking water?

Most campgrounds and RV parks provide chlorinated city water. Others offer well water. If you’re dealing with chlorinated water, a carbon filter in your RV’s filtration system will remove the taste and smell of chlorine from your water. If the water you get is relatively clean, then an inline RV water filter for your kitchen tap will suffice. Regardless of the source, reverse osmosis is the most efficient method for purifying your drinking water, although reverse osmosis tends to remove nutrient-rich minerals – such as calcium, potassium, and magnesium.

Canister systems are the most commonly used water filter for RVs, but they are not the only option.

However, before we go any further, it’s important to first understand some terminology used when talking about RV water filters.

  • Microns: Filters are classified by the size of the particles they can remove. The size of particles is measured using microns. To put things in perspective, bacteria range from 0.2 to 2 microns in width and from 1 to 10 microns in length.
  • NSF Class I, Class II, Class III, etc.: The National Sanitation Foundation establishes ratings for the effectiveness of filters. Class I filters are the most efficient at removing chlorine from water, followed by Class II, and so on.
  • Life: As the name indicates, the life of a water filter is the amount of time you can expect to use your water filter cartridge before having to replace it.
  • Flow rate: Filters slow down water flow; they do so to clean the water. Flow rate indicates how many gallons per minute your filter can handle.
  • Material: The medium used in constructing the filter.

The Best RV Water Filter


Camco – 40043 TastePURE Water Filter

This large capacity water filter can last you an entire season. It significantly reduces bad taste, odors, chlorine, and sediment from your drinking water.


It has a 20-micron sediment filter and granular activated carbon that provides you with safe drinking water from any potable source. This filter also features KDF (Kinetic Degradation Fluxion) which prevents the growth of bacteria when the filter is not in use.


Included with the water filter is a flexible hose protector that prevents your hose from kinking, which could lead to reduced water flow.


The TastePure Water Filter is hugely versatile and can attach to any standard water or garden hose connection. And because you connect the water filter outdoors, gone are the days where you will be fiddling with connections under the sink.


Just be aware that when you first use the filter, a bunch of black specks will come out in your water. This is carbon and nothing to worry about. Just let the water flow until it comes out clear.



CLEARSOURCE Premium RV Water Filter System

This premium RV water filter system is equipped with a free-standing powder-coated metal chassis. When you use this filter by Clearsource, you will be enjoying pristine water in a matter of minutes. Its dual filter design features a first stage five micron sediment filter and a second stage 0.5 micron carbon block element. The dual filter design works together to protect you from bacteria, sediment, giardia, pesticides, mercury, lead, chlorine, and much more. This is definitely the water filter to get if your water source is not so pure.


With its large canister, your RV will get maximum water flow at all times with consistent pressure, even when using multiple fixtures. Clearsource uses only the finest materials when constructing their premium RV water filter. It has stainless steel connections that fit standard RV water hoses and can take years of abuse without becoming damaged. They won’t strip, rust, and are lead-free. Clearsource also uses premium housings and high-end filter elements. It can also be used with all external RV water softener systems.



Camco – EVO Premium RV/Marine Water Filter

Camco’s premium water filter eliminates bad taste, odors, sediment, bacteria, and much more from your RV’s water tanks. It connects to all standard water or garden hose connections and can efficiently filter water from any potable water source.


The filter includes the filter housing, an extension hose, Teflon tape, cartridge wrench, and one replaceable, premium-spun polypropylene filter cartridge. Just connect the filter to your RV’s fresh water hose connection, and let the filtration begin.


The water travels through a porous shell with openings no larger than five microns in diameter. The filtered water then passes through a layer of KDF and granulated active carbon to further filtrate the water and hinder the passing of bacteria. Once the process is complete, you will be able to enjoy fresh, clean, and great-tasting water straight from your RV’s tap.


This filter is CSA low-lead content certified, and one filter typically lasts one camping season.


When you use the EVO Premium Water Filter by Camco, you will have a consistent stream of fresh-tasting and clean water on your RV at all times.



Hydro Life 52141 HL-200 External Filter Kit

This water filter by Hydro Life is ideal for RVs, trailers, or boats with an exterior water hook up. The system filters the water before it enters into your fresh water tanks and can be attached to any standard water or garden hose connection.


One pro about this unit is that it can filter water on its side, so if space is limited or your connections are a little quirky, it won’t be an issue with this filter.


Hydro Life uses patented KDF media alongside granular activated carbon to provide only the cleanest and freshest drinking water. The fine mesh activated carbon reduces contaminants that cause bad taste and odors.


The company claims that its filters can remove up to 99 percent of chlorine along with a number of other contaminants from your water.


According to Hydro Life’s website, you can use one cartridge for up to two years before cartridge replacement becomes necessary.

The maximum flow rate for this unit is 2.5 gallons per minute. This is pretty decent, considering that the average faucet expels an average of 2.5 to 3 gallons per minute.


Culligan – External Water Filter

This sturdy water filter by Culligan is perfect for exterior water filtration. Now, you can enjoy fresher and better-tasting water as well as a cleaner storage tank. It features a sleek and slim design and a convenient hose fitting kit, making it easy to install, use, and store. The one-foot connector hose quickly hooks up to your RV and requires no tools for installation.


Culligan’s water filter includes a D-15 Level 1 basic filtration replacement cartridge and a hose connection kit. The water filter uses a granular activated carbon filter. One cartridge has a life of 250 gallons or three months and effectively eliminates bad tastes, odors, and sediment.


The maximum water flow is only one gallon per minute, making it slightly slower than the unit by Hydro Life.


The only negative about this product is that the plastic hose fitting can break if you’re not careful, but replacing them with metal fittings is easy and affordable. Plus, Culligan offers a five-year limited warranty, so this may be covered. Just contact the manufacturer.



Woder – High Capacity  Water Filter

Featuring advanced selective filtration technology, this water filter by Woder removes 99.9% of contaminants while retaining essential minerals such as potassium, magnesium, and calcium. It also eliminates lead, heavy metals, chlorine, mercury, pesticides, VOCs, detergent, and much more. By removing these contaminants, you will enjoy fresh-tasting, odor-free water on your RV.


The filter is made with materials approved by the National Science Foundation and meet American National Standards Institute standards. According to Woder, their filter lasts up to six times longer than others. The Woder 10K-JG 3/8” inline filter lasts a minimum of three years or 10,000 gallons.

This product is easy to install, and you can have it up and running in less than 15 minutes. No special tools or training is required.


Please note that this product should only be used with potable water, preferably municipally-treated water.

With Woder’s Ultra High Capacity RV Water Filter, you can enjoy fresh drinking water with everything you want and nothing you don’t.

All Woder products are made in the United States.


Watts – Inline Filter 20,000 gallon

This high-capacity water filter by Watts Premier can be used in residential and commercial settings as well as motor homes and campers. The filter reduces the taste and smell of chlorine while successfully removing sediment, contaminants, and inhibiting bacterial growth. It uses a KDF fluid treatment for filtration. KDF, also known as Kinetic Degradation Fluxion is a high-purity copper-zinc formulation that utilizes a basic chemical process to eliminate chemicals that give unpleasant odors and tastes to water. KDF is coupled with granular activated carbon to ensure the cleanest and freshest drinking water possible.


Watts Premier’s filter has a significantly slower flow rate than some of the other models – 0.5 gallons per minute.

Replace the water filter after every 20,000 gallons of filtered water, whenever there is a noticeable drop in water flow, when water has a foul taste or odor, or about every six months, whichever comes first.

All Watts Premier water filters are manufactured in the United States.


Watts 520022 -Water Filter

This dual exterior water filter by Watts Water Technologies is perfect for providing a consistent stream of clean and fresh drinking water on your RV. It meets all plumbing codes and features easy garden hose fittings, making it ideal for campers and RV’s.


With this unit, you can rest assured that virtually all contaminants will be eliminated. The Watts 250022 is tested and proven to remove 99.9% cryptosporidium and giardia cysts, sediment, chlorine, and unpleasant tastes and odors.


The flow rate on this unit is pretty great – 2.5 gallons per minute – and it comes pre-assembled, so you can start enjoying fresh water on your RV in no time. How often you have to change the filters depends largely on your source of water, but for the most part, with this water filter, you can change the cartridge once per year.


A one micron and KDF filter is included with the housing wrench.


AQUACREST – Water Filter Replacement

While this is not a filtering unit – it is just a replacement cartridge – the product definitely had to make the list. These cartridges will fit the Camco RV TastePURE KDF water filter and Camco 40045 TastePURE KDF Water Filter.

This water filter features state-of-the-art technology to ensure that you have only the freshest and cleanest water onboard your RV at all times. It utilizes KDF – a high-purity allow of both copper and zinc that removes most pesticides and organic compounds. Aquacrest also uses advances coconut activated carbon for enhanced water purity.


The combination of unique and premium KDF coupled with coconut activated carbon results in fresh water free from impurities, yet it leaves behind beneficial minerals – such as calcium, potassium, and magnesium – which are beneficial to your health.

For optimal results, change your water filter cartridge every three months. This set includes two replacement cartridges.



Campbell – Water Filter System

This water filtration system by Campbell has one of the highest water flow levels coming in at three gallons per minute.


It removes sediment along with unpleasant tastes and smells such as chlorine and sulfur and organic chemicals from potable drinking water.


It fits most standard water and garden hose attachments with its ¾” inlet connection. A ¾” and a 3/8” fitting is included.


A 12-inch drinking water hose is also included, allowing you to connect the filter to the RV water supply inlet. A DW-5 (five micron) Campbell replacement cartridge is also included.


As with most water filtration systems, you should replace the cartridge about every four months, whenever the flow rate is reduced, or whenever you notice a foul taste or smell.




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