[Fit Perfectly]This locking ring replacement for pool pumps is used to replace damaged, deformed, and unsealed pool cover pumps. Designed to lock and hold the lid and O-ring assemblies down in place on the pool pumps, get your pool pump running well again and enjoy the summer.[Compatibility]Pool Spa Pump Parts 357199 compatible with only the Whisper and the Intelliflo and Intelliflo VSF. It not work on the or VS pump.[High -Quality]It has been well tested by the manufacturer. and abrasion - placed through extensive tension test to prove high quality durability and .[Easy to Install]First you can simply turn off the system. Release any air. Rotate the locking ring counterclockwise. You may need to use a little bit of strength once in a while to make sure it comes off. Remove the lid from the locking ring. Place the old lid into your new locking ring and tighten it back onto the system.Colour:Photo ColorMaterial:PlasticPackage Contents:1x Pool Pump Parts Locking RingOnly the above package content, other products are not included.Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.l