Colingmill

Colingmill RV Sewer Valve Cap with Handle is a two-piece black set of durable plastic sewer caps designed to securely seal standard RV black and gray water outlets for leak- and odor-resistant transport. If you own a motorhome or travel trailer, a dependable sewer...

These are two clear Colingmill RV sewer valve caps with ergonomic handles, made to seal standard gray and black water outlets and simplify waste tank checks and maintenance. When you're on the road, a reliable sewer valve cap prevents leaks, odors, and unwanted pests...