1.- Type: 6mm to 6MM Push to Connect Air Fittings. 2.- Fluid Admitted: Air, Water (No Freezing). 3.- Fittings working Pressure: 0-1.0mpa | 0-150psi; Proof Pressure:3.0Mpa | 435psi; Negative Pressure:-100Kpa | -29.5 In Hg 6.-Applicable: Pipe PU/ PA/ PE/ PVC; Working Temperature: 0-60°C | 32～140°F 7.- 6mm push fittings Body and collar are made of Nylon 6.6, gripping ring is stainless steel, D seal and O-rings are Nitrile- corrosion resistance, ductility;The Stainless steel gripping ring ensures excellent tube retention while the D seal within the fitting provides a positive seal on the O.D. of the tube in both static and dynamic positions, due to an optimized design of the fitting cavity. All items in Pneumatic composite range are silicone free,Elliptical sleeve help to connect tube easily by manual, no special tools required,Outside (Inside where applicable) hexagonal wrench tightening. These 6mm Quick Connect fittings are only used for industrial automatic apparatus and can not be applied on any medicinal equipment.