Check Valve Cartridge, 2/pk Back Catalog number: CTS-10493 Manufacturer: SCIENCIX Availability: 3 weeks Price on request - + Recommended PL7075350 MarvelXACT PLS 75µm x 350mm Price on request CTS-11080 Alliant Solvent Mgr PM Kit Price on request CTS-2294 Plunger Seal Price on request