Features: 1.Security Protection: Large enough clearances both ensure ventilation and avoid the entry of flying bugs, protecting your furnace and fan from pests. 2.Stainless Steel: The stainless steel mesh vent screen for maximum strength and longest service life, rust resistant for outdoor use. 3.Exquisite Craftsmanship: The exhaust vent mesh cover is finely designed to effectively optimize air circulation and provide a more comfortable living environment. 4.Simple 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. 5.Various Use: The furnace vent screen is suitable for RV, camper, outside RV furnace, water heater, or battery vents, practical to use, convenient for refit and repair. Specification: Item Type: RV Furnace Vent Material: Stainless Steel Amount: 2Pcs Per Package Size: Approx. 4.5 x 4.5 x 1.3in/11.4 x 11.4 x 3.3cm Function And Application: RV heater vent screens allow fresh air to circulate while keeping the interior ventilated so creepy crawlers don't enter or endanger safety. This RV heater vent screen makes relaxation easy. Fitment: It is intended for outside RV furnace, water heater, or battery vents and is suitable for Suburban furnace vent models 8535, 8531, 8525, 8940 DC, and 8940 AC, and for Suburban 6, 10, and 12 gallon water heater vents and most battery vents, or any 4.5 x 4. 5 x 1.3 inch opening.