HPV Rotor, SIL-30AC, SIL-30ACMP Back Catalog number: 11-4179 Manufacturer: SCIENCIX Availability: In the manufacturer's stock Price on request - + Recommended CTS-0621 Inlet Check Valve Cartridge Price on request CTS-21011 Cartridge Check Valve System Kit Price on request CTS-21010 Cartridge Check Valve Housing, 2/pk Price on request