RVGUARD RV Flying Insect Screen, RV Furnace Vent Cover Bug Screen 2 Pack 2.8 x 1.3 Inch Stainless Steel Mesh with Installation Tool and Silicone Rubber

Circular Mesh Size: 2.83''x1.26''. Rectangle Mesh Size: 6''x8.5''x1.3''. Made from high quality and heavy duty stainless steel, for maximum strength and longevity that resists corrosion.
This easy-to-install screen will help ensure that your furnace or water heater vent stays free from costly invasion by unwanted pests.
It comes with four springs and a tool to connect the springs to any of the vent openings, takes no more than a minute or two to install.
It is intended for outside RV furnace, water heater, or battery vents, so you can replace the vent cover with this equivalent part.
RVGuard offers several furnace screens, consult size and photos to confirm this screen will fit your furnace vent.