Check Valve Cartridge, 2/pk Back Catalog number: CTS-10600 Manufacturer: SCIENCIX Availability: 3 weeks Price on request - + Recommended CTS-11222 Seal Pack Assembly Kit Price on request CTS-11380 2690/2695 Performance Maintenance Kit w/Seal Pack Price on request PL7100150 MarvelXACT PLS 100µm x 150mm Price on request