Spa Filter Darlly: 70253, Baleen: AK-6061, OEM: 17-B2054, Pleatco: PBH25-4 , Unicel: C-7604 , Filbur: FC-0710, Diameter: 7", Length: 9-13/16"

Filter Specifications:

• Square Footage: 25 sq. ft.
• Media/Thickness: 4
• Diameter: 7"
• Length: 9-13/16"
• Top: Injection molded knob handle
• Bottom: Injection molded cone adapter

Equivalent to:

• Pleatco: PBH25-4
• Unicel: C-7604
• Filbur: FC-0710
• OEM: 17-B2054
• Darlly: 70253

This Filter Fits The Following Brands:

Baker-Hydro Hydro-Mite

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