Also available in the complete regulator kit SquareOvhKit. The black o-ring is ALREADY installed on the small black valve. See 'Extra Details' tab above. Includes both diaphragms, ball, o-ring, and valve. Click here to view installation video...

Keeps cord tight in switch box.

Old Part Numbers: 034-0134, 034-0136100 PSI on/130 PSI off. Includes Unloader Valve (order item 6 if leaking). If your pressure switch is constantly leaking out of the small bleeder valve on the side (or underneath), especially after the unit shuts off,...

Old Part Numbers: S137-0001This complete overhaul kit for an air compressor regulator includes knob, spring, and internal service kit. Click here for installation instructions. Note: Does not include a check valve, pressure switch, or safety valve...

CTB1412 hose barb fitting for air compressor in-tank check valve. A hose barb is defined as one or more continuous ridges or bumps on a fitting that are used to grip the inside diameter of a tube and seal the connection.

Old Part Numbers: NTB14Use this nylon tube if your air compressor pressure switch has a plastic unloader valve with a quick-connect fitting. Note: sold by the foot (quantity of 1 = 1 foot or 12 inches of tubing).