Jacuzzi SF24 Hub Only (77712) is a replacement service part for replacement hub component for compatible Jacuzzi SF24 filter assemblies. This component helps restore the fit, function, or control expected from the original Jacuzzi Whirlpool Bath equipment when the installed part is worn, damaged, missing, or no longer operating correctly.Use this part when the existing hub is cracked, damaged, or being replaced during an internal filter rebuild. Verify SF24 model compatibility and related lateral or internal parts before ordering. For best results, compare the existing component, equipment model, and installation requirements before ordering or beginning repair work. Replacement part for compatible Jacuzzi Whirlpool Bath equipment Designed for the listed model or application shown in the product title Useful for repair, rebuild, or routine service work Helps restore proper fit, operation, or equipment appearance Verify part number 77712 before purchase