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 PL7050600 MarvelXACT PLS 50µm x 600mm Price on request PL7075600 MarvelXACT PLS 75µm x 600mm Price on request CTS-10475-1 Sapphire Plunger Price on request