Material Crafted from highquality plastic material, these RV Roof Covers are UV and built for longlasting use, ensuring durability in weather conditions.Perfect Dimensions With dimensions of ID 3.8Inch, a 5.3Inch diameter base, and standing 3Inch tall, these vent caps are an ideal fit for pipes ranging from 1Inch to 238Inch in diameter, ensuring a perfect and secure match.Effective Odor Prevention The roof vent is designed to epel sewer gas, preventing unpleasant odors from entering your RV through the plumbing. It securely mounts on top of your RVs ventilation pipe for efficient odor control.Simple Installation Featuring si screw holes in the base for easy mounting, these covers can be quickly installed by screwing them on. Be sure to use silicone caulking to seal all around for added protection. The cap effortlessly snaps onto the vent, streamlining the installation process.Comprehensive Package Each package includes 2 RV Plumbing Vent Caps, complete and 12 screws. These caps are perfect replacements for wornout vents, offering a hasslefree solution to maintain the integrity of your RV plumbing system.ColourWhiteMaterialPlasticPackage Contents RV Roof Vent Cover12 screwsOnly the above package content, other products are not included.Note Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is 13cm.