Carvin J-Series 1.5 HP Uprated Impeller (05-3864-04-R) spaparts A part like this is

A part like this is useful because it helps hold the light assembly securely in place

When that board starts to weaken

When the original basket becomes cracked

The Hayward impeller with screw is designed for compatible pump applications that require a 5 HP impeller configuration

Carvin J-Series 1.5 HP Uprated Impeller (05-3864-04-R) spaparts A part like this isThe Carvin J Series uprated impeller is designed for compatible 1. 5 horsepower pump applications where stronger internal hydraulic support is needed. An impeller is useful because it is the component that drives water movement inside the pump, directly influencing how effectively the system circulates. This uprated replacement is especially useful when the original impeller has become worn, cracked, damaged, or no longer producing the flow expected