Spa Filter Darlly: 40053, Baleen: AK-30050, OEM: N/A, Pleatco: PGF5 , Unicel: C-4306 , Filbur: FC-3742, Diameter: 4-1/4", Length: 8"

Filter Specifications:

• Square Footage: 5 sq. ft.
• Media/Thickness: 3
• Diameter: 4-1/4"
• Length: 8"
• Top: 1-3/4" Hole
• Bottom: 1-3/4" Hole

Equivalent to:

• Pleatco: PGF5
• Unicel: C-4306
• Filbur: FC-3742
• Darlly: 40053

This Filter Fits The Following Brands:

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