Cleaning Spa Filters Made Easy “Spa Aqua Comb” – specifically designed for the shallow pleated cartridge filters used in most standard spas as well as larger swim spas. How does a Spa Aqua Comb work? Spray your Spa cartridge filter with a quality filter cleaner; let is sit 5 minutes. The cleaner helps kill any active bio-matter on the filter and loosens and softens the body and scented oils built up on the filter. The Spa Aqua Comb combines a flat 3” wide spray that acts like a wall with medium length fingered pic-comb that opens the pleats for the spray to reach in and allow the combs to scrub the pleat walls and dig out the dead bio-material, softened oils and other debris that accumulates. Designed for a filter fin depth of 3/4" to 1-1/4" Aqua Comb Facts Water spray is 2 times more powerful Only device that fully cleans a deep pleated cartridge filter Removes dog hair, bugs, leaves etc. Removes dust from Desert storms and marcite repairs. No more tossing out perfectly good filters! Highlights 100% Made in the USA Works great on both salt and chlorine based water filter systems Used by pool services and homeowners Designed and built for long life and use Easy to use - Will save you both time and money when you more thoroughly clean your spa filter