You can also buy a kit that contains multiple shapes & sizes of stainless steel screens for your RV's furnace, water heater, and refrigerator vents. If the screens in the kit work for your RV, this will likely be the best bang for your buck Stainless Steel Vent Covers Camco RV Water Heater Flying Vent Insect Screen Water Heater 600 (6CS Rv Hot Water Heater Screen Ventmate Bug Screen – RV Furnace Screen (for Suburban And DuoTherm... Package includes: 3 x RV Refrigerator Vent screen (20 x 1-1/2) 1 x RV Water Heater Screen(8., 5 x 6 x 1., 3) 1 x RV Water Heater Screen (4., 5 x 4., 5 x 1., 3) 4 x Spring Fasteners 2 x Installation Tool Features: Easy to install, includes tool Heavy-duty stainless steel mesh cover Protects the furnace from flying insect nests. RV furnace vent cover for bug protection 【Package Include】: 3 x RV Refrigerator Vent screen, 1x RV Water Heater Screen( 8., 5''x 6''x1., 3''), 1x RV Water Heater Screen (4., 5 x 4., 5 x 1., 3) , 4 x Spring Fasteners, 2 x Installation Tool., Easy to install., 【RV Insect Screen 4., 5 x 4., 5 x 1., 3】 : Compatible with Atwood furnace vent models 2540, 8516, 8520, 8525, 8531, 8535, and 8940; Fits Suburban 6, 10, and 12 gallon water heater vents and fits most battery vents., 【RV Insect Screen 8., 5 x 6 x 1., 3】 : Compatible with Atwood 6 & 10 Gallon and Suburban 6 Gallon water heater vents.
