Dometic RV Air Conditioner Filters

How often should I replace the air filter in my Dometic RV air conditioner?

Inspect the filter every 30 days of active use and replace it every 3 to 6 months, depending on dust exposure, pet dander, and how often you run the unit. Boondockers in dusty conditions or full-timers running the AC daily should lean toward the 3-month mark. A clogged filter restricts airflow across the evaporator coil, which drops cooling output and forces the compressor to work harder.

Which Dometic AC models do these filters fit?

This collection covers replacement filters for Dometic Brisk II, Brisk Air, Penguin II, Blizzard NXT, and FreshJet rooftop units, along with select ducted and non-ducted ceiling assemblies. Filter shape and dimensions vary by ceiling assembly, so confirm your AC model number (printed on the rooftop shroud label) before ordering. If you also need ceiling assembly parts, see our Dometic non-ducted ceiling assembly components.

Can I clean a Dometic RV AC filter instead of replacing it?

Reusable foam and mesh filters can be vacuumed and washed in warm soapy water, then air-dried completely before reinstalling. Pleated paper-style filters are not washable and should be replaced once they show visible buildup. Even reusable filters degrade over time as the foam breaks down, plan on a full replacement once a year for most setups.

What other Dometic AC parts should I keep on hand?

Beyond filters, the most common service items are capacitors, thermostats, and ceiling assembly gaskets. If you run a heat pump model, browse the FreshJet 5 heat pump ceiling assembly parts. For broader 12V and shore power components that support your rooftop unit, see our RV electronics collection.

Do these filters ship free?

Yes. RV air conditioner filters ship free on orders over $100. Most filter orders leave the warehouse within 1 to 2 business days. If you need help confirming the correct filter for your AC model number, text or call our team at 817-984-1852.