The ProAqua Hot Tub Filter for Freeflow Spas PA-545 has a 2-1/8 inch hole on the top with 1-1/2 inch male MPT threads on the bottom that fits select Freeflow spas models Legend and Passport. It’s best to confirm that this filter is the same size as the existing cartridge in your Legend or Passport spa model before ordering to ensure proper fitment.
Filter details:
- ProAqua P/N: 5CH-45
- Diameter: 5-5/16"
- Length: 9-3/4"
- Top: 2-1/8" Open
- Bottom: 1-1/2" MPT Thread
- Media: 45 sq.ft.
- Filter Media: 3oz
- Pleat count: 225
Compatible replacement for:
- Pleatco PFF50P4
- Master Deluxe M50452
- Filbur FC-2401
- Unicel 5CH-45
How long should ProAqua hot tub filters last?
While most hot tub filters need to be changed every six to twelve months, ProAqua brand filters are made with premium filtration media that delivers more surface area over standard rounded filter fibres and can last up to two years or more, depending on your level of use and cleaning routine.
