Pentair Bulkhead Bottom | Quad D.E. Filter | 178575Z Spa Care Chemical Bundles and 2‑1/2 HP models

and 2‑1/2 HP models

Gunite/Concrete SP0600U — Hayward DuraNiche

eliminating the need to shut down the pump between connecting and disconnecting the vacuum hose

also included in Element Retro Kit (196060) Pentair Quad D

Pentair Bulkhead Bottom | Quad D.E. Filter | 178575Z Spa Care Chemical Bundles and 2‑1/2 HP modelsThe Pentair Bulkhead Bottom (178575Z) is the OEM replacement bottom bulkhead fitting for the Pentair Quad D. E. Filter series, providing a secure, leak free connection at the base of the filter tank. The bulkhead bottom seals the lower tank port on Quad D. E. Filters, maintaining system pressure integrity and preventing water loss at the filter base. A failed or cracked bulkhead fitting at this position compromises filtration performance and can