Flojet # 20381-063 Snap-In Port Kit (pair)

Flojet 20381-063 Snap-In Quad Port Kit, with Viton O-Ring, For 1/2"OD Push-In Tube, Straight, JG John Guest (pair). 20381063, John Guest style push-fit fittings are compatible with any standard ASTM size PEX, copper tubing, and CPVC tubing. However, push-fit fittings cannot be used with PEX-Al-PEX tubing. There may be writing on the tubing that says ASTM or AI