Check Valve Cartridge, 2/pk Back Catalog number: CTS-10600 Manufacturer: SCIENCIX Availability: 3 weeks Price on request - + Recommended CTS-21463 Check Valve Cartridge, Ceramic, 2/pk Price on request CTS-21262 Needle, Uncoated 20 Series Price on request CTS-21567 PM Kit, Seal Wash for Binary Pump G4240A Price on request