Sapphire Plunger Back Catalog number: CTS-10319 Manufacturer: SCIENCIX Availability: 3 weeks Price on request - + Recommended CTS-A11151 Needle Assembly, PEEK™ Price on request CTS-10328 Optics Cover Window Price on request 11-4134 Rotor Seal & Pod Repair Kit, Vespel, 3-Groove for Price on request