Spa Filter Darlly: 40260, Baleen: AK-9004, OEM: 20254-238, Pleatco: PGS25P4 , Unicel: 4CH-24 , Filbur: FC-0131, Diameter: 4-5/8", Length: 9-3/4"

Filter Specifications:

• Square Footage: 25 sq. ft.
• Media/Thickness: 3
• Diameter: 4-5/8"
• Length: 9-3/4"
• Top: Handle
• Bottom: 1-1/2" MPT

Equivalent to:

• Pleatco: PGS25P4
• Unicel: 4CH-24
• Filbur: FC-0131
• OEM: 20254-238
• Darlly: 40260

This Filter Fits The Following Brands:

Saratoga, Dream Maker, White Springs, Hydro, LA Spas, Icon 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