Mfr. Part #: 501-4A
Ships same day with standard 2-day shipping if ordered M-F before 3PM PT.
The Humphrey 501-4A is a high-flow, 4-way air-piloted valve designed for controlling large double-acting pneumatic cylinders. Its compact piston-poppet design provides reliable operation in demanding environments, with 1/2" NPT ports and spring return.
ID #: 4938
