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-10788-5 Needle Wash Frit, 5/pk Price on request CTS-21421 PM Kit, 1290 Binary Pump Price on request CTS-A11135 50μL Std. Zirconia Mixer Price on request