Waterco Hydro Pak Skimmer Control Plate Plug w/String (51B1018) floatingfeeders Helps seal compatible connection points

Helps seal compatible connection points against leakage

A circuit board like this INF107 VS501Z replacement matters because it restores the control behavior the spa was originally built around

1-1/2 inch female pipe thread x 1-1/2 inch slip connection

This type of part is especially useful when the original air button has cracked

Supports application-specific replacement fit

Waterco Hydro Pak Skimmer Control Plate Plug w/String (51B1018) floatingfeeders Helps seal compatible connection pointsThe Waterco Hydro Pak skimmer control plate plug with string is designed for compatible skimmer applications where the plug section of the control plate needs replacement. A plug like this is useful because it helps close or regulate the related opening while the attached string adds convenience for handling and retrieval during service. This replacement is especially useful when the original plug is missing, damaged, worn, or no longer fitting