Needle Seal (For pH 1-14, for operation up to 130 Back Catalog number: CTS-21089 Availability: In the manufacturer's stock Price on request - + Recommended 11-3795 Sapphire Plunger w/Holder Price on request 11-4121 Ceramic Plunger Holder Assembly, LC-10ADvp Price on request CTS-21192 Cartridge, BioAcquity, I2V Price on request