Function: Designed for the gravity water inlet of the water tank of the RV water system.
Features: 1/2" vents, draining the tank air when adding water, it can quickly fill the tank.
Material: Durable with sturdy plastic, easy to use.
With 2 keys: Lockable, with 2 keys for safe use of water.
Leakproof: And seal ring design for leak proof and anti-loose.