Monitor your grey water level through this transparent bayonet cap without removing it from the valve. The 3-inch clear plastic design twists onto all standard black waste valve systems and stays secure thanks to the attached strap. A built-in seal keeps odours contained and prevents accidental spills when you’re hooked up at any campground.

• Clear bayonet cap, 3-inch diameter
• Plastic construction for visibility
• Strap prevents loss during hookup
• Leak-proof integrated seal