Check Valve Cartridge, 2/pk Back Catalog number: CTS-10493 Manufacturer: SCIENCIX Availability: 3 weeks Price on request - + Recommended CTS-12016 Compression Screw, 1/16", SS, 10/pk Price on request CTS-10566 Alliance Head Plunger Seal Kit, 2/pk Price on request PS7050600 MarvelXACT™ PEEKsil™ 50µm ID x 600mm Price on request