Part # R178580
Dimensions 20" L x 7" W x 7" D
Alternate Part #'s PENR173573, RAI-051-3573
R178580 filter cartridge Filter description: Diameter: 7" Length: 20 1/16" Top: Open 3" Bottom: Open 3" Compatible with all filters using R178580 filter cartridges
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What is the micron rating on the P178580 FILTER? also is this interchangeable with the P173578?
Hi, Ray. Cartridge filters have a micron rating around 10. The R178580 cartridge can not interchangeable with the R173578.
I have tried generic cartridges but I prefer the OEM versions. Is this an original part made by Pentair?
Yes it is a Pentair replacement. It is made to the original specifications as your original cartridge.