Caldera Spas 73722 replacement hot tub filter. Premium alternative replacement for the Caldera OEM 73722 filter which is used in the Caldera Spa models listed below. For optimal fit and performance, verify that this filter cartridge matches the dimensions of the old filter in your spa
Filter details:
- ProAqua: PA-1899
- Diameter: 8″
- Length: 16-1/2″
- Top: Closed with Handle
- Bottom: 3-5/8″ Open with lip seal
- Media: 100 sq.ft.
- Filter Media: 3oz
Compatible with the following Caldera Spa models:
- Niagra Utopia 2005 – Current
- Geneva Utopia 2005 – Current
- Tahitian Utopia 2005 – Current
- Elation 2005 – Current
- Aspire 2005 – Current
- Cantabria 2014 (3rd Quarter) – Current
Compatible replacement for:
- Caldera OEM 1039607
- Caldera OEM 73722
- Filbur FC-3965
- Pleatco PCD100W
- Unicel C-8399








