Gold Plunger Seal, Analytical Heads Back Catalog number: CTS-10548 Manufacturer: SCIENCIX Availability: 3 weeks Price on request - + Recommended CTS-12016 Compression Screw, 1/16", SS, 10/pk Price on request CTS-21089 Needle Seal (For pH 1-14, for operation up to 130 Price on request CTS-21264 Uncoated Needle Kit Price on request