Wasps and mud daubers pose a serious threat to the range vent on your RV. They can enter through the range vent and cause serious damage by building nests that interfere with air flow. The Camco Flying Insect RV Screen is for use with louver-type RV range exhaust vents used with Atwood, Wedgewood, Suburban, and Magic Chef ranges. This easy to install screen will help ensure that your vent stays free from costly invasion by unwanted pests.• Screen measures 11" x 4-1/4" x 1-5/16"• Protects the range exhaust vent from flying insect nests• Fits most louver-type RV range vents• Easy to install with included installation tool• Heavy-duty stainless steel mesh cover Easy to install Heavy-duty stainless steel mesh 11"" x 4-1/4"" x 1-5/16""