Keep your Dometic rooftop air conditioner breathing clean. This OEM-spec replacement filter slots directly into Dometic ducted ceiling assembly units, trapping dust and debris before they reach the evaporator coil. A clogged filter is the single most common reason an RV A/C loses cooling capacity -- swapping or washing this filter takes minutes and costs nothing compared to a service call.
The Dometic 3313107.103 is the correct OEM-replacement filter for Dometic air conditioners equipped with a ducted ceiling assembly. It matches the factory filter in size, material, and airflow geometry so your unit runs exactly as designed. Whether you are a full-timer logging miles in summer heat or a weekend warrior who parks the rig for months at a time, maintaining a clean filter protects the evaporator coil, reduces compressor strain, and keeps your cabin temperature where you set it.
At 14 inches by 7.5 inches, this filter covers the full intake opening of compatible ducted ceiling assemblies. The black open-cell foam construction captures particulate efficiently while still allowing adequate airflow -- a balance that matters for system longevity. Because it is hand washable, you are not locked into buying a new filter every season; rinse it out, let it dry fully, and reinstall.
Engineered to the original specification for Dometic ducted ceiling assemblies -- no trimming or adapters needed.
Rinse with mild soap and water, air dry completely, and reinstall. Reusable over multiple seasons with proper care.
Traps dust, pet hair, and road debris before they coat the evaporator coil, preserving cooling efficiency and airflow.
Backed by Dometic's limited 2-year manufacturer warranty for defect-free materials and workmanship.
RV interiors pull in a lot of particulate -- road dust, pollen, pet dander, campground debris, and humidity. Unlike a residential HVAC system with a large return-air path, a rooftop RV air conditioner draws air through a compact ceiling assembly. Even a partially blocked filter forces the blower motor to work harder, reduces evaporator coil contact with conditioned air, and can cause the unit to short-cycle or ice up. Dometic recommends inspecting and cleaning the filter at the start of every cooling season and every two to four weeks during heavy use.
This filter is designed for Dometic air conditioners paired with a ducted ceiling assembly (also called a ducted distribution system). Ducted assemblies route conditioned air through ceiling vents to multiple zones rather than discharging directly from the unit. If your Dometic A/C has a ceiling diffuser box with ductwork, this is the correct filter family.
Dometic ducted ceiling assemblies are commonly found on longer Class A and Class C motorhomes, fifth wheels, and large travel trailers where a single rooftop unit needs to cool more than one zone. Common Dometic product families compatible with this filter configuration include the Penguin, Penguin II, Brisk Air, and Brisk Air II series when paired with a ducted ceiling kit -- verify your ceiling assembly uses the 14 x 7.5 in. filter pocket before ordering.