1.Flexible and easy to use.Perfect match with the car 2. and nice qulity, durable to use. 3.Built to strict quality control standards.Not easy to damage, long service life 4.Stable performance, high reliability.a perfect replacement for your old ones 5. Made of high quality material, for durable use. Hight Quality: RV plumbing vent cover is made of durable polyethylene plastic, which is durable, not weathering, strong oxidation resistance and long service life. Size: The inner diameter of the roof vent cap is 3.8 inch, the base diameter is 5.3 inch, and the overall height is 3inch, Fit for:1inch to 2 3/8inch O.D. pipe. Function: The sewer vent cap can stop unpleasant odors from entering the cabin of your motorhome,camper. Easy to install: The plumbing vent caps are designed to be detachable and can be easily installed with 6 screw holes in the base. Universali Type: Before buying, please use a ruler to measure the required size, our plumbing cover is suitable for Various models of RV Camper. Item Type: Plumbing Vent Cap Condition: 100% Fitment:Direct Replacement Fitment: for Camper, Trailer, Motorhome color: Black Material: ABS Package Contents: 1 x Plumbing Vent Cap 6 x screw