Jacuzzi LC 0.5 HP Impeller (05 3760 09 R) filterparts The AV and SherLok compatibility The AV and SherLok compatibility and 1 1 2 inch relationship give this part its practical value because structural filter parts work best when they match the original size and assembly relationship closely This American Pentair AquaLight Light Niche Sealing Ring [Stainless Steel] (79206000) is engineered for lighting applications A properly selected replacement helps preserve the original hydraulic balance of the pump instead of forcing the repair to rely on a substitute that only partly fits Supports a focused repair without full pump replacement