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-10548 Gold Plunger Seal, Analytical Heads Price on request 11-3343 Tungsten Lamp Price on request PL7100350 MarvelXACT PLS 100µm x 350mm Price on request