This filter system is used in all current 780 series models. The filter is made up of two parts-
the 75 sq ft filter, similar to a standard filter you might see on another brand's hot tub, and a disposable white micro-filter. (Parts are sold seperately)
The disposable filter should be replaced every 3-4 months. It is
not washable or reuseable.
Purchase the 75 sq. ft filter
here. (Looking for the piece that holds both filters together?
Find that adapter here)
The MicroClean system was also used in the following models: