This is clearly a rebranded Whirlpool WHED20 filter unit. I had to replace my 10 year old hot tub due to a filter bracket leak (obviously a common problem with these units) and this is a replica; even Whirlpool's existing mounting bolts will fit this unit. All I had to do was disconnect/reconnect the water lines to the block head. Hopefully this new version has been improved to stop the leaks that the Whirlpool model was prone to after a while. (I could see a small crack on the side of the spa body where the filter gasket catches). The Whirlpool WHEEDF filters also appear to be identical and fit perfectly.
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