Needle Assembly Back Catalog number: 11-3883 Availability: In the manufacturer's stock Price on request - + Recommended 11-2401 Check Valve Cartridge, Ceramic Ball & Seat, 2/pk Price on request CTS-21011 Cartridge Check Valve System Kit Price on request 11-4180 LPV Rotor, SIL-30AC, SIL-30ACMP Price on request