Check Valve Cartridge, Ceramic Ball & Seat, 2/pk Back Catalog number: 11-2401 Manufacturer: SCIENCIX Availability: 3 weeks Price on request - + Recommended 11-3832 Wash Seal, PE, 1220, 1260, 1290 Price on request CTS-21145 Inlet Check Valve Price on request CTS-21155 Capillary, 300mm x 0.17mm ID, w/Fittings Price on request