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-21163 Rotor Seal, 2-Groove Price on request CTS-11366 Piston, High Pressure Price on request CTS-10476 Sapphire Plunger, Alliance Price on request