Hayward CX900G Knob Replacement Kit

OEM-equivalent replacement kit for Hayward Star Clear Plus cartridge filters (C900, C9002, C1200, C12002, C12002S, C751). Contains CX900G locking knob, CX900D guide cone, CX900J E-ring, two CX900W washers, CX900H O-ring, and ECX1322A directional vent valve with O-ring. All parts made from high-density plastic formulated for resistance to hydrolysis, chlorine oxidation and thermal cycling. The knob’s internal thread profile matches Hayward’s proprietary pitch and flank angle, guaranteeing full engagement with the lid’s mating thread. No adhesives, solvents or modifications needed — installs as a direct drop-in solution following standard Hayward maintenance procedures.