[Fit Perfectly] This locking ring replacement for pool pumps is designed to replace damaged, deformed, or unsealed pool cover pumps. It locks and holds the lid and O-ring assemblies securely 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] Manufactured to meet high-quality standards and tested for durability under extensive tension and abrasion conditions. [Easy to Install] Turn off the system and release any air pressure. Rotate the locking ring counterclockwise to remove it, applying slight force if needed. Remove the old lid and install it into the new locking ring, then tighten the assembly back onto the pump system. Color: Photo Color. Material: Plastic. Package Contents: 1 x Pool Pump Locking Ring. Only the items listed are included; other products are not included. Note: Due to light reflection and display differences, the color in the image may vary slightly from the actual item. Measurement error allowance is +/- 1-3 cm.