The Camco 42157 RS900 Flying Insect Screens are stainless steel wire mesh screens designed to cover the louver openings on compatible Dometic and Atwood RV refrigerator vents. They block wasps, mud daubers, and other flying insects from nesting in the vent cavity -- a surprisingly common cause of fridge airflow problems and refrigerator damage -- while still allowing the ventilation your unit needs to operate efficiently. This package includes three screens and the plastic ties needed to install them.
Mud daubers and wasps are notorious for building nests inside RV refrigerator vent compartments. Once inside, they can block airflow, coat the condenser coils and burner flue with mud, and cause the refrigerator to overheat or fail to cool. The damage often goes unnoticed until the fridge stops working -- and the repair bill can be substantial.
The Camco RS900 screens install directly over the louver openings on compatible Dometic and Atwood refrigerator vents. The stainless steel wire mesh is fine enough to block insects but open enough that it does not meaningfully restrict the airflow the refrigerator needs for proper operation. Installation uses the included plastic ties and requires no drilling or permanent modifications.
Corrosion-resistant wire mesh holds up to outdoor exposure and repeated road vibration without rusting or sagging.
Most covered refrigerator vent assemblies have two or three louver openings. This pack covers the full assembly with one purchase.
Mesh gauge is sized to stop insects without blocking the ventilation your absorption refrigerator depends on.
Plastic installation ties are included so you can mount the screens without additional hardware or tools.
RV refrigerators that run on propane or 120V absorption technology require open airflow through the rear vent cavity to dissipate heat from the condenser. Any obstruction -- including a mud dauber nest packed tight in the louver -- reduces cooling capacity and raises operating temperatures. A single nesting season can render a fridge unable to hold temperature. Screens are cheap insurance.
The Camco 42157 RS900 screens are sized for refrigerator vents with 19-3/8 inch long louver openings. This dimension corresponds to the louver slot length on many Dometic and Atwood (now Suburban) single-door and two-door RV refrigerator vent assemblies. Measure your louver opening length before ordering. If your vent has shorter or longer louvers, Camco offers other RS-series screen kits sized accordingly. The RS900 designation refers to this specific louver dimension in the Camco product line.
These screens are designed for Dometic and Atwood (Suburban) RV refrigerators that use a standard exterior vent cover with horizontal louvers. They are not a universal fit -- compatibility depends on the louver slot length matching 19-3/8 inches. Common compatible Dometic model families include RM and NDR series units installed with matching upper and lower vent covers. Atwood/Suburban models with equivalent vent geometry also accept these screens. Always verify your vent's louver measurement against the 19-3/8 inch spec.