They feature a high quality external drive spring and a heavy gauge all bolted together frame

1-1/2"(F) inlet

2-speed pump bodies for faster operation

1/4” NPT(F) Auto 3261-010

Special Note: You might also like BP-1527L (ref 85515) Large OD Wide-Style Hose Stop for 1/4″ ID Hose

Milton 745BK 1/4" NPT AMT-Style Coupler GLYCERIN FILLED They feature a high quality1 4" NPT AMT Style Coupler 1 4" national pipe thread Air flow of 42 standard cubic feet per minute Made of heavy duty rust resistant brass Maximum of 300 pounds per square inch Buna N seal 3 way 1 4" NPT AMT style couplers accept Milton A, M and T style plugs. These are the perfect solution for shops where multiple plugs are used. Features a push type coupler and drag guard to prevent accidental uncoupling. AMT style plugs have a 1 4" basic flow size,