Spa Filter Baleen: AK-90311, OEM: 10-1035, Pleatco: PBF50-F2S , Unicel: 8CH-950 , Filbur: FC-0536, Diameter: 8", Length: 6"

Filter Specifications:

• Square Footage: 50 sq. ft.
• Media/Thickness: 3
• Diameter: 8"
• Length: 6"
• Top: Handle
• Bottom: 2" SAE

Equivalent to:

• Pleatco: PBF50-F2S
• Unicel: 8CH-950
• Filbur: FC-0536
• OEM: 10-1035

This Filter Fits The Following Brands:

Bullfrog Spas

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