Spa Filter Darlly: 40059, Baleen: AK-NFC5800, OEM: NFC5800, Diameter: 4", Length: 3.5"

Filter Specifications:

• Square Footage:
• Media/Thickness: 3
• Diameter: 4"
• Length: 3.5"
• Top: Closed
• Bottom: 2" Female

Equivalent to:

• Darlly: 40059
• OEM: NFC5800

This Filter Fits The Following Brands:

Aero Spa

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