The Camco RV Polypropylene Replacement Vent Lid for Ventline prior to 2008 and Elixir since 1994 is impact-resistant and comes preassembled. It includes all mounting hardware for quick, easy installation on 14" x 14" RV vents. Hardware is rust-resistant.. Replace damaged or old RV vent lid. For Ventline (prior to 2008) and Elixir (1994 and up). Impact-resistant. Includes all mounting hardware for quick, easy installation. Durable polypropylene construction