Type:Push in fitting/Push to connect Size:3/8 " Tube OD x 1/4" NPT Thread Fluid Admitted:Air Vacuum Water (no freezing) Working Pressure:0-1.0MPa | 0-150psi Applicable Tube:PU / PA / PE / PVC Proof Pressure:3.0Mpa | 435psi Seal O-ring:Nickle-Plated Brass (NBR) Lock Claw:Nickle-Plated Brass Body:Nickle-Plated Brass Working Temperature:0-60°C | 32~140°F Negative Pressure:-100Kpa | -29.5 In Hg