Sundance® Spas 6541-397S Complete Filter Series 880 Type_Wood Chips this filter is built to

this filter is built to last considerably longer than generic alternatives

the holder mounts your cartridges out of the way alongside the filter

Caldera changed filter designs across model years

Output: 12V

Sundance® Spas 6541-397S Complete Filter Series 880 Type_Wood Chips this filter is built toSundance Spas 6541 397S Complete Filter Series 880 Overview Replacement filter for your Sundance Spa. This spa filter is the industrys first interlocking system to provide dual filtration, which produces the purest water. The outer filter traps large particles while the inner filter traps ultra fine particles. You can wash out the first stage filter to save on replacement spa filters. What's in the Box 1 x Sundance Spas 6541 397S Complete Filter