Camco's Clear RV Sewer Cap with Lanyard helps prevent leaks and spills from your RV's sewer system. It is compatible with 3-inch RV waste valves and is clear to allow you to see what's behind the cap, so you anticipate what's there. A bayonet fitting creates a secure connection with four points of attachment. Made of heavy-duty plastic with UV inhibitors for years of use. Includes a lanyard to help prevent loss. Model#: 39455; Color: Clear; Brand: Camco. Camco makes quality products for RVing, boating, camping, towing, tailgating, grilling and more. Our products help take your passion for the outdoors to the next level. At heart, Camco is a small company with big aspirations. Since 1966, we have earned a reputation for providing superior goods with high customer approval. At our core, we believe in manufacturing exceptional products and delivering superior service  all while providing a great customer experience. Explore your outdoor passion with Camco. Great memories are only an adventure away.