Waterway Plastics filter model 500-2510 is a 1-1/2"s top load filter. For use on portable spas, it is designed to mount in a niche so that the main body is under the shell of the spa, while the top is accessed from above the spa. This complete filter includes a niche lock ring (secures the body to the niche), lid lock ring (secures the lid), 25 sq. ft. cartridge, and lid w/o bromine feeder tube.
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