1Sturdy Premium Material: The Rv plumbing vent cap is made of rugged material, Uv resistant, heat resistant, erosion resistant and impact resistant, durable and can work well for a long time. 2Air Freshing: The Rv sewer pipe cover is not only sunproof, windproof, rainproof and snow proof, but also could exhausts unpleasant odors and keep the fresh air in your motorhome, camper. 3Easy to Install: The camper roof vents are designed to be detachable and can be easily removed by pulling, several screw holes in the base for mounting. 4Perfect Replacement: The plumbing vent cover can directly replace the old and broken vent cap, convenient for repair and money saving. 5Various Scenes: The Rv vent cap is suitable for 1 to 2 3/8 inch pipe of trailer, camper, motorhome, not worrying to buy multiple vent cap for different car types.