237503 is the back pressure regulator only. Part number 236770 includes the gauge, tube, inlet adapter and outlet swivel union. Graco back pressure regulators maintain the system pressure, regardless of flow demand
- Compact and lightweight design saves space and reduces payload for small circulation systems
- Tungsten and carbide materials ensure low wear and long life
- PTFE/Elastomer hybrid diaphragm withstands wear while maintaining accurate responsiveness