Screw this bayonet-locking cap onto your RV’s gravity fill inlet when parked to keep dirt and insects out of the tank. The integrated lanyard tethers it to the inlet so you won’t lose it at the campground, and the quick-release tabs make one-handed operation possible.

• Bayonet locking mechanism
• Integrated lanyard for security
• White plastic construction
• Fits standard gravity fill inlets
• Quick-release design
• Marine-rated