Lencent 14 Inch RV Roof Vent Lid, [Upgraded Version] 14x14 Universal Replacement Vent Cover Thermal Pane Lid for Camper Trailer Motorhome High Quality Material: Thanks to high density polyethylene (HDPE), Lencent RV roof vent cover is impact resistant, long lasting and weather resistant. It will provide excellent protection for your vent from sun, wind, rain, and bugs! UV Resistant: Lencent roof weather cover is molded in a UV Protected Polypropylene Blend and is specially modified to have a high resistance to UV rays. They have been used in climates that range from -40F to 130F and have a 10-year or more life expectancy. Easy Installation: Vent lid is pre-assembled for quick and easy installation. Zero-Leak mounting system lets you avoid drilling holes into your roof's surface. Lencent also provides instruction manual to help you easily replace your old RV roof vent lid. Aerodynamic Design: Optimized airflow around the vent thanks to aerodynamically streamlined design. This low-profile aerodynamic design also offers high-flow ventilation. Widely Applicable: Fits all 14 inch x 14 inch RV vents and replaces Ventline pin style models prior to 2008 and Elixir pin style models 1994 and newer.