Spa Filter Darlly: 70403, Baleen: AK-6027, OEM: PVT 40, Pleatco: N/A , Unicel: C-7439 , Filbur: N/A, Diameter: 7", Length: 9-3/4"

Filter Specifications:

• Square Footage: 40 sq. ft.
• Media/Thickness: 4
• Diameter: 7"
• Length: 9-3/4"
• Top: Handle
• Bottom: 1-9/10" Hole

Equivalent to:

• Pleatco: N/A
• Darlly:  70403
• Unicel: C-7439
• Filbur: N/A
• OEM: PVT 40

This Filter Fits The Following Brands:

DM Industries, Vita Spas, Pleatco Sim

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