Fits the 72 square foot models of the following D.E. filters:
Pentair Purex 1000 series D.E. filter (SM/SMBW 1054- 6 required)
Pentair Purex 2000 series D.E. filter (SM/SMBW 2072- 8 required)
This is an original replacement part by Pentair # 074926.
Can also use universal replacement by Unicel part number FG-1272.
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