LASCO Quick-Connect Coupling, Coupling Fitting, 3/8 in Connection Size 1, Connection Type 1: Push-In, 3/8 in Connection Size 2, Connection Type 2: Push-In, Push-Fit|Push-Fit Connection, Plastic, Material Construction: Plastic, 3/8 in Tube OD, For Use With: Copper, PEX and Poly Tubings, 100 psi, 149 deg F