Review on GOLDENROD 496-3/4 WATER-BLOCK FILTER (56591) with 3/4" NPT Top Cap - Bowl Fuel Tank Filter by Francis Heart

It was pretty darn easy to install. Plastic "cup" is very hard. Time will tell if it becomes opaque under UV light, but at this point it is very clear making it easy to see if your separator has dirt or water in it. I've seen several reviews reporting that the unit is leaking. In addition: The valve came to the open position when it arrived. Unlike most valves, the stem must be unscrewed to close it. (the opposite of what a faucet does). Seals off very well. Perhaps the manufacturer could use a reverse-threaded shank? I don't know, but the brass end in the separator bowl has to be rotated down towards the edge of the seat to close.