Spa Filter Darlly: 70355 Baleen: AK-9021, OEM: 100520, 3301-2109, Pleatco: PAS35-2 , Unicel: 7CH-322 , Filbur: FC-0420, Diameter: 7", Length: 8"

Filter Specifications:

• Square Footage: 32 sq. ft.
• Media/Thickness: 3
• Diameter: 7"
• Length: 8"
• Top: Handle
• Bottom: 2" MPT

Equivalent to:

• Pleatco: PAS35-2
• Darlly: 70355
• Unicel: 7CH-322
• Filbur: FC-0420
• OEM: 100520, 3301- 2109

This Filter Fits The Following Brands:

Artesian Spas, California Cooperage, Majestic Industries, Maax Spas of AZ, Coleman 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