1. Durable and reliable. 2. The 1/2 inch vent on the hatch ensures that water can be added quickly. 3. Plastic water inlet, the hatch is equipped with a lock and key. 4. Gravity plastic water inlet, threaded and tower-type interface, the air outlet can quickly add water. 5. Replace the key lock. If you feel the key is troublesome, you can replace it with a plastic knob lock. 6. Vent: 1/2 inch, Connector: Back of 1/2 inch male connector, 1-1/4 inch tower connector.
