Spa Filter Darlly: 10501, Baleen: AK-8001, OEM: 59054000, R173213,1561-26, Pleatco: PAP50-4 , Unicel: C-9405 , Filbur: FC-0684, Diameter: 10-1/16", Length: 8-9/16"

Filter Specifications:

• Square Footage: 50 sq. ft.
• Media/Thickness: 4
• Diameter: 10-1/16"
• Length: 8-9/16"
• Top: 6" Hole
• Bottom: 6" Hole

Equivalent to:

• Pleatco: PAP50-4
• Unicel: C-9405
• Filbur: FC-0684
• OEM: 59054000, R173213,1561-26

This Filter Fits The Following Brands:

Pentair Predator/Clean & Clear 50, Dimension One 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