Inlet Check Valve Back Catalog number: CTS-A159 Manufacturer: SCIENCIX Availability: 3 weeks Price on request - + Recommended CTS-21164 Rotor Seal, 6 port, Rear Price on request CTS-21421 PM Kit, 1290 Binary Pump Price on request CTS-12016 Compression Screw, 1/16", SS, 10/pk Price on request