Eliminates an unpleasant popping noise and a hose whip back motion when Cupla is disconnected.

• When the Cupla is disconnected, the pressure left in the plug side hose is released gradually without an unpleasant popping noise and a hose whip back motion.
• Unique design of air purge system enables the residual pressure release quickly and quietly.
• A unique but simple purge valve design is good for long and repeated use.
• The function is assured even under a high supply pressure or with a long hose.

Note: This product is not a check valve to totally stop the air flow.