Inlet Check Valve Cartridge Back Catalog number: CTS-0621 Manufacturer: SCIENCIX Availability: 3 weeks Price on request - + Recommended CTS-1010T O-Ring, TFE Price on request CTS-21085 Rotor Seal, 6 port, -COH Price on request CTS-11315 Needle Seal, PEEK™ SIL-20 Price on request