25 sq. ft. Will replace the Arctic Spas "Threaded" Disposable Filter.
The inside diameter of 2" Female SAE thread is approximately 1-11/16.
4CH-926 replaces: Arctic Spas Threaded Disposable Filter. Unicel UPC 678285240161. OEM 817-4025.
Commonly used in: Rising Dragon, Waterway, Dynasty Spas and others.
PuraSpa® Filters are quality pleated filters, made with Reemay® Filtration Fabric. We may substitute with Unicel® brand filters, another quality hot tub filter.