Maax Spas of Canada PMAX50P4 by Pleatco. Diameter: 5-3/4" Length: 8" Top: Posigrip Bottom: 1-1/2"MPT Filter also used in Coleman, Artesain, Maax, Elite and Majestic spas in Canada and the U.S.
Pleatco PWW50P4 filter with 1 1/2 inch fine threads on bottom (mpt).
Length: 7-5/8"
Width: 6" diameter
Top: Posigrip/handle
Bottom: 1-1/2" MPT (male pipe thread, fine threads)
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