[Fit Perfectly] This locking ring replacement for pool pumps is designed to replace damaged, deformed, or unsealed pool cover pumps. It securely locks and holds the lid and O-ring assemblies in place on pool pumps, helping restore proper function and performance. [Compatibility] Pool spa pump part 357199 is compatible only with Whisper, Intelliflo, and Intelliflo VSF models. It is not compatible with VS pumps. [High Quality] This part has been thoroughly tested by the manufacturer and subjected to extensive tension and abrasion testing to ensure durability and reliable performance. [Easy to Install] Turn off the system and release any air pressure. Rotate the locking ring counterclockwise to remove it, applying slight force if necessary. Remove the old lid from the locking ring. Install the new locking ring by placing the lid into the ring and tightening it securely back onto the pump system. Color: As shown in photo Material: Plastic Package Contents: 1 x Pool Pump Locking Ring Note: Light reflection and differences in display screens may cause slight variations between the color in the image and the actual item. Measurement may vary by +/- 1-3 cm.