Length:Length is measured from the outside edge of end cap to end cap, not including any handles, threads or slip fittings. 14"
Top:This is the actual inside hole diameter, excluding any taper.4-1/8" Open
Had never seen a this type of filter before. It's well built and seems durable so far.
These are not easy filters to find. They are reasonably priced and shipping was fast !!
I have had a hard time finding these. They fit perfect and they are a fair price.
Love the sock design of the filter.
Our local store can't get these anymore. Lucky to find them at spa depot and real good price to boot.