Bottom piece of the 2 piece filtration system for Sundance 780 series 2013+ (models include Chelsee, Hamilton, Montclair, Bristol, Hanover, Dover). The bottom filter is washable - clean this filter at least once a month by soaking in a solution of 16oz filter clean and 4 gal of water, then rinse very well. This filter should be replaced every 12-18 months.
Part Number: 6540-501