Product review (1 stars): Doesn't work right in my aprilaire 550
Says it works in an aprilaire 550.  Well it seems to fit and everything, but there is a big problem: it's not quite as thick as aprilaire oem pads and it ends up spraying water off of it, and the drain also screws up for some reason.  I get a ton of water dripping from around the drain spud, instead of down the tube, and from the  bottom of pad housing where the cover connects as it spits water off the pad.  Used two of these and same thing both times,  thought I did something wrong, and tried flipping it so different side faced the intake side and flipping it over from the marked top, but same thing.  Put an oem pad in and vola, all of that stops.  Got these locally, what a,headache.  Meanwhile my oem pad is on it's third season after sitting in the trash I throw lint into, twice, while I wait for new oem pad to arrive and not having any of those issues.  Only issue then is keeping it low enough to avoid condensation on the outside walls.