Spa Filter Darlly: 80651 Baleen: AK-7007, OEM: 31114,76136, 71827, Pleatco: PWK45N , Unicel: C-8465 , Filbur: FC-3960, Diameter: 8-1/2", Length: 10-1/2"

Filter Specifications:

• Square Footage: 65 sq. ft.
• Media/Thickness: 3
• Diameter: 8-1/2"
• Length: 10-1/2"
• Top: 3" Hole
• Bottom: 3" Hole

Equivalent to:

• Pleatco: PWK65/PWK45N
• Unicel: C-8465
• Filbur: FC-3960
• OEM: 31114, 76136, 71827
• Darlly: 80651
• Baleen: AK-7007

This Filter Fits The Following Brands:

Hot Springs, Caldera

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