This filter fits Lifesmart 57" square inflatable spas perfectly! And at $* for 4, just replace them when they turn black (completely), don't waste your time trying to wash them.
This idea worked ... the oversized (long) blanket fits UNDER my after-factory cover of my standard hot tub. We all know that after-factory, even specially ordered, isn't as snug .... so for winter I drape this under the cover, sides hanging out, to better seal the slight gaps. Works!
If you need further help or information please visit our Online Help Center