Connect and disconnect tubing without tools. Meets FDA standards & NSF listed. O-ring/collet design. Body is polypropylene, O-rings are EPDM. Collet is polypropylene with stainless steel teeth. Max 150 PSI @70°F, 60 PSI at 140°F. Working Temp: 33°F to 140°F. Will withstand a full vacuum. Use fittings with rigid tubing. Tube-to-hose stems and elbows let you use soft tubing. Create rotating swivel connections by connecting special stem adapters with male pipe threads together. White in color.