Hayward STAR-CLEAR LOCKING KNOB

The Hayward Star-Clear Locking Knob is a vital manual fastener designed to secure the filter head to the tank body on Star-Clear series cartridge filters, such as the C250 and C500 models. It is injection-molded from a high-impact, UV-resistant thermoplastic that is specifically engineered to endure the harsh conditions of a pool equipment pad, including direct sunlight and chemical exposure. The knob features an oversized, ergonomic "star" or "T-handle" shape, allowing pool owners and service professionals to apply sufficient torque by hand to compress the main tank O-ring without the need for specialized tools. This component typically features a heavy-duty internal thread or a permanent metal stud designed to provide a secure mechanical lock, ensuring the filtration system remains watertight and safe under high hydraulic pressure during the cleaning cycle. For shipping and logistical purposes, the estimated weight of the Hayward Star-Clear Locking Knob is approximately 0.8 pounds in its retail packaging, while the actual weight of the knob itself is roughly 0.6 pounds.