10 Best RV Water Filters (Recommendations Based on Usage)

Taking your RV out around the country can be incredibly rewarding and help you reconnect with nature. Unfortunately, sometimes that nature is polluted, often in the case of water supplied at campgrounds or that you store in your RV’s tank.

If you want to drink water in your RV, some sort of filtration system is a must. In some parts of the United States and Canada, microorganisms such as giardia and E. coli are present in water. In addition to capturing potentially harmful microbes, you also want to be sure you aren’t drinking or showering in water with hazardous elements such as lead or even arsenic. Here’s what to look for in an RV water filter system:

Best RV Water Filters  Source: wandrlymagazine.com

Buying Guide

  • Microns filtered. The best RV water filters will remove particles down to roughly four or five microns. If a filter only removes larger microns, you are still at risk for bacteria and such in your water.
  • National Sanitation Certification (NSC) class rating, either I, II, or III. Class I filters will be the best at chlorine removal from your water.
  • Flow rate. All water filters will slow down your water flow to some extent, so you need to balance proper filtration with the amount of water pressure you require.
  • Lifespan. Many filters last around three months, but some need changed sooner, while others can last up to a year.
  • Filtration type. Some units only have activated carbon, while others have kinetic degradation fluxion (KDF), reverse osmosis, and even UV light. The UV light will help sterilize water.
  • Installation. Some water filters are hooked up to the line entering your RV’s water tank (also called inline), and some need mounted under the sink for filtration of drinking water only. If you need water filtered for your entire RV—showering also—you will need a unit that also filters the water entering the storage tank. You can combine filters to remove pollutants from the container, and then further filter the drinking water at your tap.

Buying Recommendations

Camco 40045 TastePURE Inline RV Water Filter, Greatly Reduces Bad Taste, Odors, Chlorine and Sediment in Drinking Water (2 Pack)
Clearsource Premium RV Water Filter System | Pristine Water. Unparalleled Water Flow. Built-in Stand.
PureDrop CUW4 Aquacube Tankless Drinking Water Filter System Compact Ultra Filtration for Sink, RV, and More, White
3-Stage RV/Marine XXL Inline Water Filter | Kills Bacteria, Viruses On Contact | Last 4X Longer | Filters Chemicals, Insecticides, Chlorine, Lead | Made in The USA |
Beech Lane External RV Dual Water Filter System, Leak-Free Brass Fittings, Mounting Bracket and Two Filters Included, Sturdy Construction is Built to Last
Frizzlife Under Sink Water Filter-Quick Change Under Counter Drinking Water Filtration System-0.5 Micron High Precise Removes 99.99% Lead, Chlorine, Bad Taste & Odor-with Dedicated Faucet.
Filter Type
Inline
two-stage micron and carbon block
under sink/multi-stage
Inline
external
compact canister/under sink installation
Filter Lifespan
3 months
2000 gallons or 3 months
6 months, dependent on the use
25,000 gallons or one year
6 months
up to 6 months
Best Budget
Camco 40045 TastePURE Inline RV Water Filter, Greatly Reduces Bad Taste, Odors, Chlorine and Sediment in Drinking Water (2 Pack)
Filter Type
Inline
Filter Lifespan
3 months
Best Premium
Clearsource Premium RV Water Filter System | Pristine Water. Unparalleled Water Flow. Built-in Stand.
Filter Type
two-stage micron and carbon block
Filter Lifespan
2000 gallons or 3 months
Full-Time Use
PureDrop CUW4 Aquacube Tankless Drinking Water Filter System Compact Ultra Filtration for Sink, RV, and More, White
Filter Type
under sink/multi-stage
Filter Lifespan
6 months, dependent on the use
Part-Time Use
3-Stage RV/Marine XXL Inline Water Filter | Kills Bacteria, Viruses On Contact | Last 4X Longer | Filters Chemicals, Insecticides, Chlorine, Lead | Made in The USA |
Filter Type
Inline
Filter Lifespan
25,000 gallons or one year
Best Seasonal
Beech Lane External RV Dual Water Filter System, Leak-Free Brass Fittings, Mounting Bracket and Two Filters Included, Sturdy Construction is Built to Last
Filter Type
external
Filter Lifespan
6 months
Compact Canister
Frizzlife Under Sink Water Filter-Quick Change Under Counter Drinking Water Filtration System-0.5 Micron High Precise Removes 99.99% Lead, Chlorine, Bad Taste & Odor-with Dedicated Faucet.
Filter Type
compact canister/under sink installation
Filter Lifespan
up to 6 months

Best Budget RV Water Filters

1. Camco TastePURE Inline RV Water Filter – Editor’s Pick

Specs
Filter Type: Inline
Filter Lifespan: 3 months
Camco 40045 TastePURE Inline RV Water Filter, Greatly Reduces Bad Taste, Odors, Chlorine and Sediment in Drinking Water (2 Pack)
Camco 40045 TastePURE Inline RV Water Filter, Greatly Reduces Bad Taste, Odors, Chlorine and Sediment in Drinking Water (2 Pack)
If you’re on a strict budget but still need at least some RV water filtration, we like the Camco TastePURE two-pack. These filters are super affordable, can last up to three months, and will remove the large sediment and chlorine odor.

What we like about it
  • KDF protection to prevent bacteria growth inside the filter
  • Excellent for large-capacity use
  • Budget-friendly two-pack
  • Simple to install
  • Made in the USA
Drawbacks
  • Only removes particles 20 microns and up
  • Does not kill bacteria in water
Sale
Camco 40045 TastePURE Inline RV Water Filter, Greatly Reduces Bad Taste, Odors, Chlorine and Sediment in Drinking Water (2 Pack)
  • Safe water matters: GAC (Granular Activated Carbon) filtration greatly reduces bad taste, odor, chlorine, and sediment
  • Large capacity filtration: Each large capacity in line water filter lasts an average of 3 months for a total of 6 months filtration
  • Multiple uses: Can be attached to any standard gardening or water hose to provide healthier drinking water and cleaner water overall. Great for RVs, boats, campers, pets, gardening, and much more

2. AQUACREST RV Inline Water Filter

Specs
Filter Type: Inline
Filter Lifespan: 3 to 6 months
AQUACREST RV Inline Water Filter, NSF Certified, Reduces Lead, Fluoride, Chlorine, Bad Taste, Ideal for Gardening(Pack of 4)
AQUACREST RV Inline Water Filter, NSF Certified, Reduces Lead, Fluoride, Chlorine, Bad Taste, Ideal for Gardening(Pack of 4)
For those bulk-buying RV water filters, we are a fan of the AQUACREST four-pack. These inline filters do a fantastic job of removing larger particles, metals, arsenic, and odor. The two-stage filters use both KDF and activated carbon for extra filtration.

What we like about it
  • Reduces heavy metals and fluoride
  • Two-stage KDF and activated carbon filtering
  • Excellent for shorter, seasonal use
  • The more robust, upgraded unit helps prevent bursting
  • Affordable four-pack
Drawbacks
  • Only removes particles 20 microns and larger
  • Does not soften water or kill bacteria
Sale
Camco 40045 TastePURE Inline RV Water Filter, Greatly Reduces Bad Taste, Odors, Chlorine and Sediment in Drinking Water (2 Pack)
  • Safe water matters: GAC (Granular Activated Carbon) filtration greatly reduces bad taste, odor, chlorine, and sediment
  • Large capacity filtration: Each large capacity in line water filter lasts an average of 3 months for a total of 6 months filtration
  • Multiple uses: Can be attached to any standard gardening or water hose to provide healthier drinking water and cleaner water overall. Great for RVs, boats, campers, pets, gardening, and much more

Best Premium RV Water Filters

1. CLEARSOURCE Premium RV Water Filter System – Editor’s Pick

Specs
Filter Type: two-stage micron and carbon block
Filter Lifespan: 2000 gallons or 3 months
Clearsource Premium RV Water Filter System | Pristine Water. Unparalleled Water Flow. Built-in Stand.
Clearsource Premium RV Water Filter System | Pristine Water. Unparalleled Water Flow. Built-in Stand.
If you want an RV water filter that will do more than just remove chlorine odor and large contaminants, one of our favorites is the CLEARSOURCE system. This filter is heavy duty and can remove particulate down to 0.5 microns (some organisms that can make you sick) as well as heavy metals such as lead.

What we like about it
  • Filters down to impressive 0.5 microns
  • Excellent for large capacity and flow
  • Ideal for removing giardia, cysts, and other small microns
  • Robust powdered stainless steel housing
Drawbacks
  • A bit expensive
  • Can leak if not tightened properly
Clearsource Premium RV Water Filter System | Pristine Water. Unparalleled Water Flow. Built-in Stand.
  • AWARD WINNING. Featured In 2018 TrailerLife Magazine's "Essential Equipment For RV Camping" Gear Guide, and extensively reviewed in January, 2019 MotorHome Magazine ("Impressive." "Makes RV water filtering an art form.")
  • BULLET PROOF. Premium RV water filter system, engineered from the ground up for the RVer. Powder-coated chassis. Stainless steel fittings, not coated brass. Oversize canisters for maximum water flow.
  • PREMIUM, NSF CERTIFIED FILTER ELEMENTS. We build our systems only with NSF certified filter elements. Our 5 micron 2.5 x 10 inch first stage filter removes sediments. Our 0.5 micron coconut shell carbon block 2.5 x 10 inch second stage filter removes chlorine, volatile organic compounds, cysts, giardia, and other contaminants. Our coconut shell carbon block technology creates great tasting water - significantly better than standard carbon filters.

2. Express Water Alkaline Ultraviolet Reverse Osmosis Water Filtration System

Specs
Filter Type: Under-sink/multi-stage
Filter Lifespan: 6 months
Express Water ROALKUV10M UV Reverse Osmosis Water Filtration System – 11 Stage UV Water Filter with Faucet and Tank – Under Sink Water Filter – with Alkaline Filter for Added Essential Minerals – 100 GDP
Express Water ROALKUV10M UV Reverse Osmosis Water Filtration System – 11 Stage UV Water Filter with Faucet and Tank – Under Sink Water Filter – with Alkaline Filter for Added Essential Minerals – 100 GDP
For campers who want the best of the best in an RV water filter, our other favorite, top-of-the-line pick is the Express multi-stage system. This filter includes UV light to kill bacteria, fungi, salmonella, and other microorganisms. This filter also has active minerals to soften your water, activated carbon to capture particles, and reverse osmosis for enhanced purity.

What we like about it
  • Combines several types of filtration for best water quality
  • Restores beneficial minerals to filtered water
  • Comes with leak-stop valve and pressure gauge
  • Ideal for filtering drinking water
  • Fantastic for long-term use
Drawbacks
  • Requires room under RV sink to set up
  • Must be plugged into a 110-volt outlet for UV light filter
Clearsource Premium RV Water Filter System | Pristine Water. Unparalleled Water Flow. Built-in Stand.
  • AWARD WINNING. Featured In 2018 TrailerLife Magazine's "Essential Equipment For RV Camping" Gear Guide, and extensively reviewed in January, 2019 MotorHome Magazine ("Impressive." "Makes RV water filtering an art form.")
  • BULLET PROOF. Premium RV water filter system, engineered from the ground up for the RVer. Powder-coated chassis. Stainless steel fittings, not coated brass. Oversize canisters for maximum water flow.
  • PREMIUM, NSF CERTIFIED FILTER ELEMENTS. We build our systems only with NSF certified filter elements. Our 5 micron 2.5 x 10 inch first stage filter removes sediments. Our 0.5 micron coconut shell carbon block 2.5 x 10 inch second stage filter removes chlorine, volatile organic compounds, cysts, giardia, and other contaminants. Our coconut shell carbon block technology creates great tasting water - significantly better than standard carbon filters.

Best RV Water Filter for Full-Time Use

1. PureDrop Aquacube 4-Stage Compact High-Efficiency Water Filter System – Editor’s Pick

Specs
Filter Type: under sink/multi-stage
Filter Lifespan: 6 months, dependent on the use
PureDrop CUW4 Aquacube Tankless Drinking Water Filter System Compact Ultra Filtration for Sink, RV, and More, White
PureDrop CUW4 Aquacube Tankless Drinking Water Filter System Compact Ultra Filtration for Sink, RV, and More, White
When you spend most of your time in your RV and need water filtration for cleaner drinking water, we love this compact, under-sink system. The multi-stage unit removes both significant particles and small microns from your water than can make you sick.

What we like about it
  • Quick and simple installation
  • Compact for RV under sink water filtration
  • Filters down to 0.01 microns
  • Can remove some bacteria and giardia
  • LED filter change indicator
Drawbacks
  • A bit pricey
  • Not ideal for excessively hard water
Sale
PureDrop CUW4 Aquacube Tankless Drinking Water Filter System Compact Ultra Filtration for Sink, RV, and More, White
  • Cut hassles, not corners with a typical installation time of less than 30 minutes. The unique design of the integrated water route reduces installation time dramatically, and the click-on filter installation ensures easy installation and maintenance.
  • Enjoy safer, healthier, better-tasting water. The superior 4-stage multipurpose water filtration system with its 0. 01 micron Ultra Filtration (UF) stage removes up to 99% of most problematic pollutants, including chlorine and chlorine treatment by-products, lead, arsenic, and much more while retaining healthy minerals.
  • Stay informed on your filter’s status with the integrated LED filter change indicator. Just press and hold both buttons to start.

Best Part-Time RV Water Filter

1. USA Adventure Gear 3-Stage RV/MARINE Inline Water Filter – Editor’s Pick

Specs
Filter Type: Inline
Filter Lifespan: 25,000 gallons or one year
3-Stage RV/Marine XXL Inline Water Filter | Kills Bacteria, Viruses On Contact | Last 4X Longer | Filters Chemicals, Insecticides, Chlorine, Lead | Made in The USA |
3-Stage RV/Marine XXL Inline Water Filter | Kills Bacteria, Viruses On Contact | Last 4X Longer | Filters Chemicals, Insecticides, Chlorine, Lead | Made in The USA |
When you use your RV a lot, but only part-time throughout the year, replacing filters frequently can be easy to forget. We like USA Adventure’s inline filter, which uses quantum disinfection, KDF, and activated carbon, but only needs to be replaced after 25,000 gallons or one year (whichever occurs first).

What we like about it
  • Long-lasting water filter
  • Does not hinder much water pressure (5 gallons per minute)
  • No bulky unit to install
  • Filters many microorganisms
  • Approved for portable water systems
Drawbacks
  • A bit expensive for inline filter
  • No UV or reverse osmosis
3-Stage RV/Marine XXL Inline Water Filter | Kills Bacteria, Viruses On Contact | Last 4X Longer | Filters Chemicals, Insecticides, Chlorine, Lead | Made in The USA |
  • Highest Level Of Protection: USA Adventure Gear’s 3 in 1 inline water filter offers the highest level of protection from water impurities with 3 levels of protection. No other inline filter on the market offers this protection.
  • Most Filtering Capacity On the Market: While the competition inline filters last 3-4 months and less than 5000 gallons, Our 3 in 1 inline water filter last up to a year, or 25,000 gallons.
  • Use Fewer Filters: 4 of their filters equals 1 of ours: Eliminates excess waste.

Best Seasonal RV Water Filter

1. Beech Lane External RV Dual Water Filter System – Editor’s Pick

Specs
Filter Type: external
Filter Lifespan: 6 months
Beech Lane External RV Dual Water Filter System, Leak-Free Brass Fittings, Mounting Bracket and Two Filters Included, Sturdy Construction is Built to Last
Beech Lane External RV Dual Water Filter System, Leak-Free Brass Fittings, Mounting Bracket and Two Filters Included, Sturdy Construction is Built to Last
We like the Beech Lane water filter for seasonal RV travelers because this system can filter out some microorganisms as well as larger particles but will not break the bank like some more robust filters can.

What we like about it
  • Filters down to .5 microns
  • Comes with mountable bracket
  • Round wrench included
  • Comes with a 100 percent lifetime warranty
  • Affordable
Drawbacks
  • Some rare issues with leaking
  • No UV or reverse osmosis filtration
Beech Lane External RV Dual Water Filter System, Leak-Free Brass Fittings, Mounting Bracket and Two Filters Included, Sturdy Construction is Built to Last
  • LEAD-FREE BRASS FIXTURES PREVENT LEAKS - The use of 3/4" lead-free brass fixtures ensures that your water is clean and safe and provides a strong connection to the hose that will not leak
  • DUAL WATER FILTER INCLUDES 5 MICRON AND 0.5 MICRON FILTERS TO MAXIMIZE PURITY - Using both a 5 micron and 0.5 micron for double filtration works to filter both large particles such as sand and dirt to smaller particles such as chlorine. They can be replaced by any universal filters of the same size.
  • HEAVY DUTY CONSTRUCTION THAT IS BUILT TO LAST - The housing, fixtures, and bracket are extremely sturdy and will hold up over time. No need to worry about them cracking or breaking over time. The filter includes a wrench to make removing the housing easy.

Best Compact Canister RV Water Filter

1. Frizzlife Under Sink Water Filter – Editor’s Pick

Specs
Filter Type: compact canister/under sink installation
Filter Lifespan: up to 6 months
Frizzlife Under Sink Water Filter-Quick Change Under Counter Drinking Water Filtration System-0.5 Micron High Precise Removes 99.99% Lead, Chlorine, Bad Taste & Odor-with Dedicated Faucet.
Frizzlife Under Sink Water Filter-Quick Change Under Counter Drinking Water Filtration System-0.5 Micron High Precise Removes 99.99% Lead, Chlorine, Bad Taste & Odor-with Dedicated Faucet.
We love the quick-install and simple filter change features of this compact canister RV water filter. The Frizzlife system fits under your RV sink and does a substantial job of filtration for such a simple unit. The price is reasonable, and this model has an auto shut-off feature, as well.

What we like about it
  • Easy-change cartridges
  • Filters down to 5 microns
  • Removes up to 99.99 percent of heavy metals like lead
  • Auto shut-off
  • Does not remove essential minerals from water
Drawbacks
  • Does not filter all microorganisms
  • Not ideal for especially hard or dirty water
Sale
Frizzlife Under Sink Water Filter-Quick Change Under Counter Drinking Water Filtration System-0.5 Micron High Precise Removes 99.99% Lead, Chlorine, Bad Taste & Odor-with Dedicated Faucet.
  • TWO-STAGE ADVANCED WATER PURIFIER WITH 0.5 MICRON: The Frizzlife MP99 Water Filtration System include a TWO-STAGE High precise compound filter, which has a unique technology that removes over 99.99% of contaminants while leaving in all essential minerals. Eliminates LEAD, HEAVY METALS, CHLORINE, CHROMIUM 6, MERCURY, RUST, VOLATILE ORGANIC COMPOUNDS, CARCINOGENS, AND OTHER CONTAMINANTS, SUCH AS TURBIDITY, ORDORS AND BAD TASTES. Enjoy PURE AND HEALTHY WATER From the tap. NO more bottle water!
  • DEDICATED FAUCET & BRASS FEED WATER ADAPTER VALVE INCLUDE: Frizzlife Undersink water filtration system includes a dedicated stailess steel faucet that can installed in most sinks providing cleaner filtered water for cooking or drinking. NO plumbing required, it come with 3/8" compatible brass feed water adapter, brackets and STEP-TO-STEP Installation manual, you can mount the water filter as you wish within 10 minutes.
  • BEST AUTO SHUT OFF DESIGN: Utilizing quick change twist-in installation design makes it take less than 3 minutes for you to install the system or doing a filter replacement. Provides for easy, tool-free, no mess filter replacement. The filter cap is designed with BUILT-IN shut off valve. You don't even need to shut off the water supply whenever you work on the filter cartridge replacement.

Best Inline RV Water Filter

1. Culligan Single Unit RVF-10 Level 1 RV External Water Filter – Editor’s Pick

Specs
Filter Type: Inline
Filter Lifespan: 250 gallons or 3 months
Culligan RVF-10 Recreational Vehicle (RV) External Water Filter
Culligan RVF-10 Recreational Vehicle (RV) External Water Filter
If you’re looking for an affordable water filtration option or, perhaps, a less bulky unit to install, we love Culligan’s single unit, inline model. This RV filter removes odor and many contaminants before the water enters your RV tank.

What we like about it
  • Level I filter
  • Filters water before entering RV tank
  • Fantastic for seasonal use
  • Simple to install
  • Five-year limited warranty
Drawbacks
  • Metal fittings can break
  • Will not filter out all bacteria
Sale
Culligan RVF-10 Recreational Vehicle (RV) External Water Filter
  • Provide your family with visibly clean, great-tasting water for drinking, cooking, and more
  • FEATURES: Reduces bad taste/odor, aesthetic chlorine taste/odor, and sediment; non-cellulose; 5-year limited warranty; Slim and sturdy design with a durable plastic housing; 3/4-inch flexible hose couplings
  • COMPATIBILITY: The Culligan RVF-10 filtration system works with the Culligan D-15 filter cartridge

Best Reverse Osmosis RV Water Filter

1. APEC Top Tier 5-Stage Reverse Osmosis Water Filter – Editor’s Pick

Specs
Filter Type: reverse osmosis
Filter Lifespan: 6 months to one year
APEC Water Systems ROES-50 Essence Series Top Tier 5-Stage Certified Ultra Safe Reverse Osmosis Drinking Water Filter System
APEC Water Systems ROES-50 Essence Series Top Tier 5-Stage Certified Ultra Safe Reverse Osmosis Drinking Water Filter System
For an RV reverse osmosis water filtration system, we like APEC for the reasonable price, the five-stage filtering, the 50-gallon per day capacity, and the bonus faucet that comes with the kit. The filters on this unit can last quite a while, and the noise-free system can remove several types of microorganisms from drinking water.

What we like about it
  • Lead-free sink faucet included
  • Filters down to 5 microns and capture some bacteria/viruses
  • Outstanding user ratings
  • Can be used with well water
  • Two-year extended warranty available
Drawbacks
  • Bulkier than some filter types
  • A little pricey

Final Thoughts

Don’t set out in your RV without at least a budget water filter. If you can afford one that removes microorganisms, it’s a worthwhile investment in your health. Remember to change your filter cartridges as needed—a dirty water filter will not do you good. Now pick your favorite option today and get on the road to adventure and cleaner water, the way nature intended.

Last update on 2020-08-06 / Affiliate links / Images from Amazon Product Advertising API

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