Alliance Head Plunger Seal Kit, Black, 2/pk Back Catalog number: CTS-10711 Manufacturer: SCIENCIX Availability: 3 weeks Price on request - + Recommended CTS-10686 Needle Seal, Vespel® Price on request 11-2642 Needle Port Seal, AS-100, ASI-100T Price on request CTS-21089 Needle Seal (For pH 1-14, for operation up to 130 Price on request