Length:Length is measured from the outside edge of end cap to end cap, not including any handles, threads or slip fittings. 14-7/8"
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-4301
Pleatco:Pleatco part numbers start with a "P" like "PWW100ST".PMT27.5
Filbur:Filbur part numbers start with an "FC-" like "FC-0360".FC-1610
We've been using this filter for our hot tub for many years and always order from SpaDepot. Prompt shipment and great customer service. We once received the wrong filter and they immediately sent a replacement.
Quality filter. Great response time on delivery.
This is the second time I have bought this particular filter from SpaDepot and am mostly happy with the filters. This time though, I had to work hard to get the filter to fit. The inside diameter was perhaps one to two millimeters smaller and I could not just drop it in. The filter works just fine and I would have given it a 5-star rating except for the tight fit. Yes, I would buy this filter again.
Completely easy user interface on the SpaDepot website, great product quality and reliable on-time delivery.