Pentair FNS Plus Tank Bottom Assembly 36 sq ft | FNS Plus DE Filter | 170016 Pool Lift Parts replacement filter cartridge engineered for

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Pentair FNS Plus Tank Bottom Assembly 36 sq ft | FNS Plus DE Filter | 170016 Pool Lift Parts replacement filter cartridge engineered forThe Pentair Tank Bottom Assembly (170016) is the OEM replacement lower tank body section for the FNS Plus D. E. Filter in the 36 square foot configuration. The tank bottom assembly forms the lower pressure vessel of the FNS Plus filter, housing the internal grid assembly and managing the flow of water through the D. E. filter media. When the tank bottom develops cracks, stress fractures, or compromised sealing surfaces common after years of seasonal