Pentair Collector Hub Assembly for 21" Waterford Sand Filter | WC137-517P Turbo Clean Creates a seal within the

Creates a seal within the filter's diaphragm area

Flow Support: Enables efficient

Optimizes Circulation

The 4-bend “figure-4” return-to-deck configuration provides natural grip positioning and stable support for swimmers entering and exiting the pool

Restores proper valve sealing and eliminates backflow issues

Pentair Collector Hub Assembly for 21" Waterford Sand Filter | WC137-517P Turbo Clean Creates a seal within thePentair Collector Hub Assembly for 21" Waterford Sand Filter WC137 517P Restore proper water distribution with the genuine Pentair Collector Hub Assembly for compatible 21 inch Waterford and Cristal Flo T 200BP sand filters. Features Genuine Pentair OEM replacement part. Restores proper water flow through the lateral assembly. Durable molded thermoplastic construction. Designed for compatible 21 inch sand filters. Ideal for complete sand filter