Description
Our hot tub spa filters meets or exceeds manufacturer specifications.
Filter Specifications:
- Square Footage: 18 sq. ft.
- Media/Thickness: 3
- Diameter: 4-5/8"
- Length: 8"
- Top: Handle
- Bottom: 1-1/2" MPT
Equivalent to:
- Pleatco: PTL18P4
- Unicel: 4CH-21
- Filbur: FC-0121
- OEM: 20245-238