Piston O-Ring

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This is the key to enabling the Quick Turn Injector to create the necessary vacuum to help force windshield repair resin into the impact point of a windshield crack repair or windshield chip repair. The Piston O-Rings are the two O-Rings on the piston of the injector. They end up on the inside of the cylinder which gives you the Air-Tight seal for vacuum and pressure. These last six months to a year with proper maintenance. Comes in a pack of 12.