Spa Filter Darlly: 70522, Baleen: AK-9028, OEM: 1561-12, Pleatco: PDO75P3 , Unicel: 7CH-975 , Filbur: FC-0475, Diameter: 7", Length: 10-1/2"

Filter Specifications:

• Square Footage: 52 sq. ft.
• Media/Thickness: 3
• Diameter: 7"
• Length: 10-1/2"
• Top: Handle
• Bottom: 1-1/2" SAE

Equivalent to:

• Pleatco: PDO75P3
• Unicel: 7CH-975
• Filbur: FC-0475
• OEM: 1561-12
• Darlly: 70522

This Filter Fits The Following Brands:

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