Back-Up Piston Ring
Keep your Giant Pump unit running smoothly with the right repair kits, replacement parts, and accessories. This replacement back-up piston ring is designed for use with the following models:
- 22913AR regulators
- 22912A unloaders
WARNING: This product can expose you to chemicals including Lead, which is known to the State of Californiato cause cancer and birth defects or other reproductive harm (For more information go to www.p65warnings.ca.gov).








