Review on AQUACREST Compatible Aqua Pure Whirlpool WHKF GAC Filtration by Andre Bennett

So, as many have pointed out, these filters only have (drainage?) holes on one end, unlike the Aqua Pure filters I usually use. The listing refers to the included installation guide which shows holes on both ends. lol. The photo in the listing shows the bottom holes when the tag (they don't come with tags) stand upright for you to read. I assumed the holes should be as low as possible to allow the cartridges to drain. Someone pointed out that they don't last as long as AP. I wonder if that person installed them with the holes facing up so dirty water would collect inside. The supplier must either add holes at the other end or clarify the installation. News at 11.