Inlet Check Valve Back Catalog number: 11-4060 Manufacturer: SCIENCIX Availability: In the manufacturer's stock Price on request - + Recommended CTS-10984 Sparge Diffuser Price on request CTS-21011 Cartridge Check Valve System Kit Price on request 11-4052 Needle Seal, SIL-30AC, SIL-30ACMP Price on request