CPC Chrome Plated Brass Couplings Rugged metallic material excellent for higher pressures, commonly used in instrumentation, water lines, ink transfer, air and vacuum line applications. Options are 1/8in. and 1/4in. nominal flow coupling bodies and inserts Not interchangeable between sizes Coupling halves connected by simply pushing together, an audible click indicates secure connection Pushbutton thumb latch for one hand disconnect Shut off option has built-in valve which will automatically cut off the supply when disconnected Straight through option gives an open flow path with no valve Shut off & straight through options of the same size can be connected together