Poly Quick Coupling Valves have an internal valve that is normally closed so that water does not leak out. To activate the valve, lift up the flipcap and insert the "KEY". On the top of the key you can insert a sprinkler or a hose.
Made from sturdy plastic. The QCV with a yellow cap is pictured, it is also available for purchase with a lilac cap to indicate use of recycled water.
Please note the poly key is sold separately.