Main Piston Seal Back Catalog number: 11-2588 Manufacturer: SCIENCIX Availability: 3 weeks Price on request - + Recommended 11-3601 ACQUITY H SM-FTN Performance Main. Kit,700005236 n Price on request CTS-0069 Tubing, Head to Tee Price on request CTS-21171 Rotor Seal, H-Assy, 6 Port 2-Position Price on request