Cartridge Check Valve Housing, 2/pk Back Catalog number: CTS-21010 Manufacturer: SCIENCIX Availability: In the manufacturer's stock Price on request - + Recommended CTS-21089 Needle Seal (For pH 1-14, for operation up to 130 Price on request CTS-21278 Rotor seal, Injector Valve 1300 bar, G7167B Price on request CTS-2324 Needle Wash Frit Price on request