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-21567 PM Kit, Seal Wash for Binary Pump G4240A Price on request CTS-5464 Clip Ring, Plunger Retainer Price on request CTS-12013 Tungsten Lamp (1000 hr) Price on request