Check Valve Cartridge, 2/pk Back Catalog number: CTS-10493 Manufacturer: SCIENCIX Availability: 3 weeks Price on request - + Recommended CTS-0620 Outlet Check Valve Cartridge Price on request PS7025150 MarvelXACT™ PEEKsil™ 25µm ID x 150mm Price on request CTS-21164 Rotor Seal, 6 port, Rear Price on request