Seal Wash Face Seal Back Catalog number: CTS-10532 Manufacturer: SCIENCIX Availability: 3 weeks Price on request - + Recommended CTS-21089 Needle Seal (For pH 1-14, for operation up to 130 Price on request CTS-10693 Plunger Seal Price on request 11-1596 Piston Assembly, Sapphire Price on request