Check Valve Assembly, Outlet Back Catalog number: 11-1599 Manufacturer: SCIENCIX Availability: 3 weeks Price on request - + Recommended CTS-10761 HPMV 1 & 2 Rebuild Kit w/Spool Price on request 11-1596 Piston Assembly, Sapphire Price on request CTS-A138 Ceramic Plunger Assembly Price on request