Item - Check Valves Check Valve Flow Design Single Mechanism and Body Design Inline Ball Cone Body Material - Valves Nylon Pipe or Tube Size 1/8 in Connection Type Barb x Barb Cracking Pressure 1 psi Mounting Orientation Horizontal Vertical Seal Material Buna-N Max Temp - Valves 140 Degrees F Min Temp - Valves -20 Degrees F Max Water Pressure - Valves 125 psi Max Steam Pressure - Valves Not Rated Seat Material Nylon Spring Material Stainless Steel Full Flow - Valves Yes