Features: Designed for Polyurethane or Nylon tubing. Quick and Reliable connections. Reusable: Multiple connections/disconnections. Convenient elliptical sleeve configuration. Specifications Fluid Type: Air. Operating Pressure: 0- 145 PSI / 0 - 9.9 kgf / cm2 (0-990kPa). Working Temperature: 32-140°F / 0-60°C. O-Ring: NBR (Acrylonitrile butadiene rubber). Plastic Body: PBT (Polybutylene terephthalate). Packing: NBR (Acrylonitrile butadiene rubber). Back Ring: POM (Polyoxymethylene plastic). Lock Claws: Stainless Steel. Collar: Zinc Alloy. Sleeve: POM (Polyoxymethylene plastic).