High Quality Material: The RV Duct Vent Cover is made of high quality ABS material, which is rainproof and sunproof, reliable in quality and durable in use.Easy to Install: RV Plumbing Vent Cap comes with screw accessories, making installation very simple and convenient, no additional tools are requiredWide Application: RV Roof Vent Cover installs on top of the vent duct of your trailer RV. Suitable for all kinds of cars, boats, RVs, and outdoor equipment.Good Ventilation Effect: The RV Sewer Vent Cap Cover can provide ventilation inside the RV to ensure fresh and comfortable air. It is an excellent accessory for your camping.Size: RV Trailer Roof Vent Cover size is 13.4cmx13.4cmx7.4cm/5.28inchx5.28inchx2.91inch. It also prevents foreign objects from entering ventilation ducts.Specification:Material: ABSSize Chart:13.4cmx13.4cmx7.4cm/5.28inchx5.28inchx2.91inchPackage Includes:1x RV Duct Vent Cover6x screwsNote:Please allow slightly errors due to manual measurement and different monitors.