Spa Filter Darlly: 91003, Baleen: AK-8013, OEM: 42-2941-08-R, Pleatco: PJ100-4 , Unicel: C-9699 , Filbur: FC-1490, Diameter: 9-15/16", Length: 19-7/8"

Filter Specifications:

• Square Footage: 100 sq. ft.
• Media/Thickness: 4
• Diameter: 9-15/16"
• Length: 19-7/8"
• Top: 5-13/16" Hole
• Bottom: 6-1/16" Hole

Equivalent to:

• Pleatco: PJ100-4
• Unicel: C-9699
• Filbur: FC-1490
• OEM: 42-2941-08-R
• Darlly: 91003

This Filter Fits The Following Brands:

Jacuzzi Bros. CFR 100 - CFT 100

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