Pentair Filter Hub Assembly, 3" | 154016Z Maytronics or internal stress on the

or internal stress on the exchanger section

Gecko Alliance - 9920-400178 - Gecko Spa Light Harness - is a replacement product identified by manufacturer part number 9920-400178

This cover regulates water flow while preventing direct access to the suction line

It provides a protective seal and keeps debris out of the top mechanism

The pewter gray finish is listed to match specific facility equipment

Pentair Filter Hub Assembly, 3" | 154016Z Maytronics or internal stress on theWhat This Part Is Used For The Pentair 154016Z Hub Assembly 3in is used within select Pentair sand filter systems to connect and support internal lateral components. It directs water evenly through the filter media during filtration and backwash cycles. Why This Part Matters A cracked or worn hub can cause channeling inside the sand bed, reducing filtration efficiency. It may also allow sand to return to the pool if internal connections fail.