Sundance Spas Replacement Filter - 125sq ft Part #6540-488. Height: 19" Diameter: 8.5" Hole: 2.5" 125ft Double Sided Filter used on: 1. 2003+ Bahia 2. 2000-2001 Caprio 3. 2003-2005 Cayman 4. 2003-2005 Lagunas 5. 2003-2005 Palermo Filter equivalent to: Filbur: FC-2780 Pleatco: PSD1252000 Unicel: C8326, C-8326 Double Sided Filter used on: 2003+ Bahia, 2000-2001 Caprio, 2003-2005 Cayman, 2003-2005 Lagunas, 2003-2005 Palermo Technical Note: This filter has been used in many instances to replace the original filters that are recommended by Sundance Spa Can Be Used in Place of: 6540-507 Microclean 2 filterup to 2005. This filter was used on Sundance Spas 850/880 Systems 6540-501 and 6540-502 MicroClean System. NOTE: will not work with a part of the 6540-501 or 6540-502 Microclean filter as part of the Microclean filter, the 6540-488 is used as a single filter rather than the split filter of the Microclean System. Do not order a 6540-502 or 6540-501 filter with this filter.