Length:Length is measured from the outside edge of end cap to end cap, not including any handles, threads or slip fittings. 9"
Bottom:Outer Diameter (OD) of threads measures approx. 1-7/8.1-1/2" Fine Thread
Premium replacement for:Filbur:Filbur part numbers start with an "FC-" like "FC-0360".FC-0302
Both filters arrived in perfect condition and installed without any issues. Can not comment on the longevity.
Have been buying these for years. Great filters, easy to clean. The only problem I had was that there was an offer for Power Soak for $2 off when I selected these filters. I checked the box to accept the Power Soak offer but it was not added to the order and I didn't get it.
It was the right fit, my original had no marking, only the work ""off"" I think, so I had to measure it and this way found the right part at spa depot
The filters fit perfectly and it is keeping the water cleaner. They were shipped promply and I received them the next day.