Check Valve, Double Ball & Seat Back Catalog number: CTS-A11095 Manufacturer: SCIENCIX Availability: 3 weeks Price on request - + Recommended 11-3795 Sapphire Plunger w/Holder Price on request 11-1597 Piston Assembly, TZP Price on request CTS-11149 Needle Seal O-Ring, 002 Kalrez Price on request