- Pressure ratings comparable to steel cuplas - A built-in "automatic lock mechanism" locks the sleeve upon connection, thus prevents accidental disconnection - Just push plug into socket for simple connection - The weight is a quarter of steel Hi Cupla for easy handling - Can be use for air and water - Less likely to damage painted or easily dented surfaces than metal couplings - Air flows in either direction from plug or from socket side when coupled - Plug and socket with hose guard nut are also available