Tube Assy, BSM Outlet to SM Back Catalog number: CTS-21075 Availability: In the manufacturer's stock Price on request - + Recommended CTS-10322 Ceramic Plunger Price on request CTS-A11336-02 Cartridge, Intelligent Valve, 2/pk Price on request CTS-21586 1100 Series Essential Pack, G1310A/G1311A Pump Price on request