Check Valve Cartridge, 2/pk Back Catalog number: CTS-10493 Manufacturer: SCIENCIX Availability: 3 weeks Price on request - + Recommended PL7100350 MarvelXACT PLS 100µm x 350mm Price on request CTS-10597 Wash Tube Seal Kit, 4/pk Price on request CTS-21145 Inlet Check Valve Price on request