1Kit Information: Includes 2 round mesh covers, 1 mounting caliper, 2 springs, perfect for your application and repair. 2Security Protection: Large enough clearances both ensure ventilation and avoid the entry of flying bugs, protecting your furnace and fan from pests. 3Stainless Steel: The stainless steel mesh vent screen for maximum strength and longest service life, rust resistant for outdoor use. 4Exquisite Craftsmanship: The exhaust vent mesh cover is finely designed to effectively optimize air circulation and provide a more comfortable living environment. 5Simple Installation: The mesh set is simple in design and easy to install, no professional tools are needed, you can easily install it by yourself, saving time and effort. Specification Item Type: RV Furnace Vent Material: Stainless Steel Amount: 2Pcs Per Package Size: Diameter: Approx. 2.8in/7.1cm Height: Approx. 1.2in/3.0cm Function And Application: This easy to install screen will help ensure that your stove or water heater vents are protected from harmful pests at a high cost. It comes with two springs and a tool to attach the springs to any vent and takes no more than a minute or two to install. Package List 2 x RV Furnace Vent 2 x Spring 1 x Mounting Caliper