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 CTS-0069 Tubing, Head to Tee Price on request CTS-9600 Inlet Manifold Kit Price on request CTS-5531-05 Solvent Bottle Filter, 5/pk Price on request