Sundance Spas MicroClean Filter Adapter 6540-503
This filter accessory allows you to attach Sundance Spas filters 6540-501 and 6540-502 (sold separately) to your spa. This is not a disposable part; it will stand up to repeated cleanings and be retained as you clean and replace filters.
2002–2005 850 and 850E spas
2006–2012 780 Spas
2011–2012 Select Spas