Length:Length is measured from the outside edge of end cap to end cap, not including any handles, threads or slip fittings. 13-5/16"
Top:This is the actual inside hole diameter, excluding any taper.2-1/8" Open
Bottom:This is the actual inside hole diameter, excluding any taper.2-1/8" Open
Premium replacement for:Unicel:Unicel part numbers either start with a "C" or contain a "CH" like "C-8475RA" or "6CH-49".C-4326
Pleatco:Pleatco part numbers start with a "P" like "PWW100ST".PRB25-IN
Filbur:Filbur part numbers start with an "FC-" like "FC-0360".FC-2375
Other:817-2500, 33521, FL1001, 17-2327, 3005845
These are quality spa filters at a competitive price. My order was processed promptly and arrived quickly.
Looked for filter in local spa shops, but this site had it. Went by measurements and spa name. Very satisfied.
Expedite delivery. Low cost and excellent merchandise
They work fine
These filters fit my hot tub and work great 👍. I have used these for 10 years and the price is been good. I also used the hypoallergenic filter on several occasions but did not see a beneficial difference for the price.
our first purchase with Spa Depot, will only use them from now on
This filter is a great replacement and work great with my hot tub. Will definitely buy again!
Great business to do business with. easy on line ordering and very fast shipment.
Was very satisfied with the product. Will buy again.