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Comparison

Best RV Water Filter: The $35 Inline vs the $600 Canister System

Three RV water filters compared. What micron ratings mean, what carbon actually removes, and why the Camco TastePURE and Clearsource Ultra are not competing products.

Buy the $34.99 Camco TastePURE if your problem is how campground water tastes. Buy the $599.99 Clearsource Ultra if your problem is what might be in it. These are not two grades of the same product; they do different jobs, and most of this page is explaining that difference. Scores weigh published specs, warranty, and price. We have not lab-tested these units.

Top picks

Top picks

Clearsource#1 Pick

Ultra RV Water Filter System

0.5 micron carbon block, 4.5 gpm claimed
    Beech Lane#2 Pick

    External RV Dual Water Filter System

    5 micron sediment + 0.5 micron carbon block
      Camco#3 Pick

      TastePURE Water Filter (KDF) with Flexible Hose Protector (40043)

      20 micron, inline, one season

        Micron ratings, in one paragraph

        A filter's micron rating is the size of particle it physically stops; smaller numbers stop smaller things. The Camco inline is rated at 20 microns, which catches sand, rust flakes, and visible sediment. The Clearsource Ultra and the Beech Lane both run a 5-micron sediment stage into a 0.5-micron carbon block. That 0.5 figure is 40 times finer than the Camco, and it is the difference between screening a hose and actually filtering water. Nothing about the Camco is dishonest; a 20-micron sediment screen with carbon behind it is exactly what a $35 inline filter should be. It is just a different tool.

        What carbon does and does not do

        Every filter here uses carbon, and carbon has one core talent: adsorbing chlorine, tastes, and odors. That is why an inline Camco makes municipal campground water drinkable-tasting. What loose carbon media does not do is strain out fine particles; that depends on the physical pore size, which is why the solid 0.5-micron carbon blocks in the canister systems matter. And no carbon stage, block or granular, sterilizes water. Of the three, only the Clearsource's VirusGuard stage even claims bacteria, cyst, and virus reduction, and Clearsource does not publish a micron rating for that stage. Whatever you buy, start from a potable source. The filter is insurance, not treatment.

        Where the Camco claims actually live

        One honesty note before the table. Camco's SKU page for the TastePURE lists price, dimensions, and warranty, and nearly nothing else. The specs everyone shops on, the 20-micron rating, the 120-day lifespan, the NSF/ANSI 42 and 53 testing and NSF 372 lead-free claims, all come from Camco's TastePURE marketing pages rather than the product listing. We are reporting them as claims, and flagging where they came from, because that is the kind of detail that should be on the product page and is not. Clearsource has a milder version of the same issue: the roughly 2,000-gallon cartridge life is site content we found via search, not a product-page spec.

        All three, side by side

         ClearsourceBeech LaneCamco
        Price$599.99-$34.99 single; $44.99 2-pack
        Key spec0.5 micron carbon block, 4.5 gpm claimed5 micron sediment + 0.5 micron carbon block20 micron, inline, one season
        StagesThree canisters: 5 micron sediment, 0.5 micron coconut carbon block, VirusGuard5 micron PP sediment + 0.5 micron carbon block-
        VirusGuardClaims bacteria, cyst, and virus reduction; micron rating not stated--
        Flow4.5 gpm claimed--
        Cartridge life~2,000 gallons per cartridge (site content via search, not the product page)--
        ChassisMetal chassis; filters included--
        Fittings-Lead-free brass-
        Includes-Mounting bracket and two filtersFlexible hose protector
        Warranty-Lifetime (manufacturer claim)-
        Micron rating--20 microns (stated on Camco's TastePURE marketing pages, not the SKU page)
        Media--KDF plus carbon; Camco's 'Hex-Flow' six-stage claim
        Lifespan--Up to 120 days / one season (marketing-page claim)
        Certifications--NSF/ANSI 42 & 53 testing and NSF 372 lead-free, claimed on marketing pages
        Best forFull-timers filling from questionable spigotsClearsource-style filtration without the Clearsource price, probablyMaking campground water taste decent for $35
        Score7/106.8/106.5/10

        Who should buy what

        Weekenders at developed campgrounds: the Camco, and stop thinking about it. The water is municipal, your complaint is chlorine, and $35 a season fixes it with zero installation.

        Full-timers filling wherever the tap is: the Clearsource Ultra. Fine sediment staging, the 0.5-micron block, a claimed 4.5 gpm so your pressure survives, and a metal chassis built to live outside. $599.99 is a lot of money; seventeen seasons of Camco filters, by the math. Whether that trade makes sense depends entirely on how much you trust your water sources.

        The Beech Lane is the interesting maybe. Same 5-micron and 0.5-micron staging as the Clearsource, lead-free brass, a claimed lifetime warranty, bracket and filters included. But the manufacturer site shows no price and simply links to Amazon, and it publishes neither a flow rate nor a cartridge life. If the Amazon price is right on the day you look, it may be the value pick. We cannot tell you that in advance, and we will not guess.

        What we would skip

        Buying the Clearsource for a rig that only ever fills at well-maintained campgrounds; it is solving a problem you do not have. And buying the Beech Lane without checking the current Amazon price and searching out replacement cartridge costs first, because a canister system with unknown consumable pricing is an open-ended subscription.

        See the rest of the gear

        Sewer hoses, power, and the other unglamorous equipment that keeps a rig livable.

        Browse gear reviews

        Frequently asked questions

        What is the best water filter for an RV?

        For taste and odor, the $34.99 Camco TastePURE inline filter is enough. For actual fine filtration, the Clearsource Ultra's 5 micron sediment stage and 0.5 micron carbon block are in a different class, at $599.99. They solve different problems, so 'best' depends on whether you are fixing campground chlorine taste or filtering water you do not fully trust.

        What micron rating do I need for RV water?

        Lower is finer. The Camco's 20-micron element is coarse sediment screening: sand and rust, not much else. A 0.5 micron carbon block, which the Clearsource Ultra and Beech Lane both use, is 40 times finer. If your goal is anything beyond taste, the number you want on the box is 0.5, with a coarser sediment stage ahead of it doing the rough work.

        Does a carbon filter make water safe to drink?

        Not by itself. Carbon adsorbs chlorine, tastes, and odors, and a fine carbon block also physically strains what is larger than its rating. But no filter here turns a non-potable source into a safe one, and only the Clearsource's VirusGuard stage even claims bacteria and virus reduction. Fill from potable taps; filtration is a layer, not a substitute.

        How long does an RV water filter last?

        Camco's marketing pages claim up to 120 days, about one season, for the TastePURE. Clearsource site content puts cartridge life around 2,000 gallons, though that figure is not on the product page itself. Beech Lane publishes no lifespan at all for its cartridges, which is worth knowing before you commit to its canister sizes.

        Next step

        Compare the picks.

        Scored on the specs that decide the outcome, not the marketing.