Spa Filter Baleen: AK-80113, OEM: CX1250RE, CX1500RE,58040, Pleatco: PA125-4 , Unicel: C-9499 , Filbur: FC-1299, Diameter: 9-1/4", Length: 19-5/8"

Filter Specifications:

• Square Footage: 120 sq. ft.
• Media/Thickness: 4
• Diameter: 9-1/4"
• Length: 19-5/8"
• Top: 3" Hole
• Bottom: 3" Hole

Equivalent to:

• Pleatco: PA125-4
• Unicel: C-9499
• Filbur: FC-1299
• OEM: CX1250RE, CX1500RE,58040

This Filter Fits The Following Brands:

Hayward ASL Full-flo C1200 / C1500, Muskin FE-129

Filter Glossary

As you can see in this graphic, when looking at a filter's threads from the side the difference is very obvious. Standard, sometimes called "MPT" or "Male Pipe" threads are smaller and have a higher number of threads than the S.A.E. style. The S.A.E. threads are large and are square in nature almost resembling a child's toy.

• MPT: Male Pipe Thread
• FPT: Female Pipe Thread

How to measure a hot tub filter references:

Spa Care Center or Pool Care Center