Replacement locking ring designed for compatible Whisperflo and Intelliflo variable speed pool and spa pumps, including model 357199. Built to last and to restore proper sealing and retention where the original locking ring has worn or failed. Key benefits Increased strength: Designed with 30 percent more material for up to 3 times the strength of common replacement rings, extending service life. Durable and abrasion resistant: Subjected to tension testing to verify durability and resistance to wear under normal pump conditions. Reliable fit: Engineered to match the locking function of the original part for compatible Whisperflo and Intelliflo pumps, helping to maintain correct pump assembly and operation. Low maintenance: Stronger construction reduces the need for frequent replacements and minimizes downtime during pool season. Features and attributes Function: Replacement locking ring for securing pump components on compatible models. Compatibility: Fits Whisperflo and Intelliflo variable speed pool and spa pumps, including model 357199. Construction: Reinforced design with additional material for improved longevity and wear resistance. Performance: Tested for tension and abrasion to ensure dependable operation in typical pool pump environments. Typical use scenarios Routine maintenance: Swap in this locking ring during seasonal pump servicing to a cracked or deformed original ring and restore proper sealing. Preventive upgrade: Install as a more durable replacement to reduce the chance of failure during heavy use or long pump run times. Emergency replacement: a broken locking ring quickly to a pump to service and avoid extended downtime. Compatibility reminder Intended as a replacement for compatible Whisperflo and Intelliflo variable speed pool and spa pumps, model 357199. Confirm model number before to ensure fit.