Pneumatic couplings offer unrestricted full flow with safe, quick connection and disconnection under pressure and are available in nominal sizes 1 /4 to 3 /4 in. and in different interchanges. Air is vented from hoses with a swinging movement to render vented air harmless. They come in many different types and models and a wide choice of seals and lubricants. They seal while offering ease of operation and long service life.

Oetiker Inc., (989) 635-3621, www.oetiker.com