Unicel 5CH-45 Replacement Filter Cartridge | 45 sq. ft. | Freeflow Spas Legend & Passport

Description

The Unicel 5CH-45 is a 5000 Series 45 sq. ft. replacement filter cartridge engineered for Freeflow Spas hot tubs equipped with a threaded standpipe housing. With 225 pleats of 3 oz. Reemay 2033 polyester media and a precision 1-1/2″ MPT threaded base, this cartridge delivers reliable filtration performance season after season — locking securely onto the standpipe for a leak-free seal.

⚠️ IMPORTANT: VERIFY YOUR FILTER TYPE BEFORE ORDERING
Freeflow Spas used two different filter styles across model years. This cartridge features a 1-1/2″ threaded (MPT) bottom fitting that screws onto a standpipe inside the filter housing. Newer models (approx. 2016 and later) use a non-threaded drop-in cartridge — if your current filter does not have a threaded base, this is NOT the correct replacement. Inspect your existing filter before ordering.

Specifications

Fits into:

(This is not an exhaustive list.)

Pro Tip: Before ordering, remove your existing filter and inspect the bottom. If it has a threaded fitting (screws onto a standpipe), the 5CH-45 is your match. If it simply drops into the housing with no threads, check the 4CH-949 instead. When in doubt, match the OEM part number printed on your existing filter’s end cap or housing label.

]]>