The Unicel C-4440 hot tub filter is compatible with select Sundance Spas models listed below that use the OEM 6540-495 filter cartridge. For optimal fit and performance, verify that this filter cartridge matches the dimensions of the old filter in your spa.
Filter details:
- Unicel P/N: C-4440
- Diameter: 4-5/8"
- Length: 16-3/4"
- Top: Castle
- Bottom: 2-1/16" Open
- Media: 40 sq.ft.
- Filter Media: 4oz Reemay
- Pleat count: 158
Compatible with the following Sundance Spas models:
- Allegro (All Years)
- Montego 1993
- Calypso 1990-1992
- Rio mid-1991 (Changed mid-year to new style)
- Gemini 1991
- Redondo mid-1991
- Marin 1991-1992
- Redondo mid-1992
- Montego 1991 (mid-year)
- Tango 1991-1999
Compatible replacement for:
- Sundance Spas OEM 6540-495
- Pleatco PSD40-4
- Filbur FC-2710
How long should Unicel hot tub filters last?
While most hot tub filters need to be changed every six to twelve months, Unicel brand filters are made with REEMAY premium trilobal filtration media that delivers 45% more surface area over standard rounded filter fibres and can last up to 18 months or more, depending on your level of hot tub use and filter cleaning routine.
