Fluid Type: Air Operating Pressure: 0 - 150 PSI Working Temperature:32°F to 140°F (0°C to 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)