Spa Filter Darlly: 60471 Baleen AK-9013, OEM: 373043, Pleatco: PTL35W-P-4 , Unicel: 6CH-47 , Filbur: FC-0315, Diameter: 6", Length: 9-7/8"

Filter Specifications:

• Square Footage: 50 sq. ft.
• Media/Thickness: 3
• Diameter: 6"
• Length: 9-1/8"
• Top: Handle
• Bottom: 1-1/2" MPT

Equivalent to:

• Pleatco: PTL35W-P4
• Unicel: 6CH-47
• Filbur: FC-0315
• Darlly: 60471
• OEM: 370343

This Filter Fits The Following Brands:

Sundance Spas Fits 2008+ 680 Burlington, Hartford, and Hawthorne models and Fits 2007 680 Hartford and Hawthorne models

Advanced Spa Design, Pacific Spas by Aber (Canada), After Hours Spas, Gatsby Spas, Aber Hot Tubs (Canada), LA Spas, Crystal Water Spas (Canada), Echo series, Blue Ridge, Hydro 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