Check Valve Cartridge, 2/pk Back Catalog number: CTS-10493 Manufacturer: SCIENCIX Availability: 3 weeks Price on request - + Recommended PL7025350 MarvelXACT PLS 25µm x 350mm Price on request PL7025150 MarvelXACT™ PLS 25µm x 150mm Price on request CTS-7162 Plunger Seal, Black Price on request