Quick Coupler Plug Industrial Interchange Type - Quick Connect Air Couplings Pipe Size - Quick Connect Air Couplings 3/8 In. (M)NPT Hose Connection - Quick Connect Air Couplings Body Size - Quick Connect Air Couplings 3/8 In. Max Pressure - Quick Connect Air Couplings 500 psi Stainless Steel Buna-N Seals - Quick Connect Air Couplings Max Flow 45 cfm Temp Range -40 Degrees to 250 Degrees F Application On End of Hose or Pipe