Clearsource OnBoard RV Water Filter Systems


Purpose-built for the RVer, the Clearsource OnBoard RV water filter delivers better water and better water flow.

2 Canister OnBoard

We’ve redesigned our original two-stage filter system, with new best-in-class 0.2-micron protection against contaminants – better than all other in -line, single or dual canister RV water filter systems on the market.

Our new hospital-grade, 0.2-micron filter captures contaminants other systems miss. And, unlike the filters in other systems, it carries an “absolute” rating – meaning every pore is the rated size or better. With this enhanced protection, our redesigned system removes or reduces bacteria like Legionella and E. Coli, and cysts like giardia.

Paired with our first stage coconut shell carbon block filter, our redesigned system also improves taste and smell, and removes or reduces sediment, chlorine, chloramines, volatile organic compounds, and other contaminants.

3 Canister OnBoard

We’ve reengineered our top-of-the-line 3 canister systems with new, Clearsource-exclusive VirusGuard ™ filters that use NASA-developed technology to remove or reduce not just bacteria and cysts, but viruses. No other RV water filter on the market provides anything close to that level of protection.

THREE STAGE FILTERING. When your water leaves our Ultra™ water filter system, it has been filtered three separate times. Our 5-micron first stage filter removes or reduces rust and sediment. Our 0.5-micron second stage coconut shell carbon block filter improves taste and smell, and removes or reduces chlorine, volatile organic compounds, and other contaminants. Our third stage VirusGuard™ filter provides even better protection than advanced survival filters, with the certified capability to remove or reduce bacteria like e. coli, cysts like Giardia, and – unique to Clearsource - viruses.

We ship each of our Clearsource OnBoard systems with 1/2 inch PEX fittings permanently installed in the system to plumb your unit inside your RV. 


  • Oversize canisters deliver unbeatable water flow.
  • Quality PEX fittings keep things sanitary, and stand up to years of abuse.
  • The custom-fabricated powder-coated metal chassis with pre-drilled mounting holes lets you mount the system onboard, in the utility bay, or anywhere else you would like. 

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