Posi-Link A200-NS-04-BC, Acetal, Push-to-Connect Tube Fitting, Panel Mount PTF Socket (Non-Valved), 1/4" Tube OD Panel-mounted socket fitting to allow tube connection on the side of a barrier Accepts nylon and polyurethane tube fittings Made of acetal copolymer plastic for low moisture absorption and high tensile and flexural strength Working pressure of up to 120 psi Operating temperature ranges from -40 to 180 degrees F