Sparge Diffuser Back Catalog number: CTS-10984 Manufacturer: SCIENCIX Availability: 3 weeks Price on request - + Recommended CTS-10493 Check Valve Cartridge, 2/pk Price on request CTS-10583 Plunger Rinse Seal Price on request 11-4134 Rotor Seal & Pod Repair Kit, Vespel, 3-Groove for Price on request