See your waste tank fill level at a glance with this transparent 3-inch bayonet cap. It twists onto your standard black waste valve and stays put thanks to the attached retention strap. When you’re ready to drain, the built-in seal prevents spills and odours from escaping into your RV. A practical see-through design beats guessing your tank capacity.

• Bayonet cap, 3-inch diameter
• Clear plastic construction
• Includes retention strap
• Integrated seal for leak-proof closure