Fangrui Product Details Complete Installation Kit Included: Each Package Contains Two High-quality Stainless Steel Mesh Screens, Two Spring Hooks, Two Silicone Rubber Strips, And A Handy Installation Tool, Ensuring A Quick And Easy Setup Without Needing Additional Tools. Designed For Durability And Fit: Crafted From Robust Stainless Steel, These Screens Are Built To Last And Are Compatible With Most Duo- And Furnace Vents. The Precise Dimensions Of 2.8 Inches In Diameter And 1.3 Inches In Depth Provide A Universal Fit For Hassle-free . Effective Insect And Barrier: Keep Your Rv Free From Insects And Small Vermin Such As Roaches, Mice, Wasps, And Birds. Our Rv Furnace Vent Screen Is Meticulously Designed To Block These While Maintaining The Cleanliness And Comfort Of Your Living Space During Your Travels. Optimized Airflow With Fine Mesh: Enjoy Uninterrupted Fresh Air Flow In Your Rv. Our Scientifically Designed 0.12-inch Mesh Size Is Transparent Yet Effective, Ensuring That Air Circulates Freely While Keeping Unwante