Sundance Micro-Clean Filter This filter is not a reproduction like many on-line stores carry. This filter is a certified O.E.M filter straight from the Sundance factory and is engineered with a proprietary material that is designed to pull the correct amount of water through your circulation pump in-order to elimate pump failure un-like many other reproductions or non-Sundance Filters.
**This filter can only be used with the 6540-501 75 SQFT PLEATED FILTER
**This filter fits all 2001-2004 850 Series Spas
**This filter fits all 2006+ 780 Series Spas