Sapphire Plunger Back Catalog number: CTS-11297 Manufacturer: SCIENCIX Availability: 3 weeks Price on request - + Recommended 11-2587 Piston Seal Wash Seal/Priming Valve Seal Price on request CTS-11380 2690/2695 Performance Maintenance Kit w/Seal Pack Price on request CTS-11335 ACQUITY H-Class QSM Performance Maintenance Kit Price on request