Description
Replacing the o-rings in your Benjamin / Air Force PCP Hand Pump has never been easier. With Captain O-Rings printable o-ring replacement guide, simply size up o-rings with the guide and replace with the sizes indicated in the guide. This drastically reduces the time and effort spent rebuilding your pump
Includes Nitrile Butadiene O-Rings and one (1) 007 90 durometer Polyurethane piston o-ring. The piston o-ring is the most crucial seal in the pump, and the one that faces the highest stress. Black buna o-rings often fail prematurely in this application due to the high heat and abrasion faced when pumping the piston.
Captain O-Ring’s printable o-ring replacement guide makes replacing the o-rings in your pump easier than ever.



