I ordered this grass catcher for my Great States 16 manual mower model 816-16, but it's seriously annoying that this is being advertised as universal fit for "14, 16, and 18-inch width reel mowers" while it is not.  This grass catcher, made by Great States, will NOT fit mowers with trailing wheel (2 rear wheels in addition to the main 2 wheels) that has less than 19 1/2" space to allow for the grass catcher to be installed. Measure and make sure you have more than 19 1/2 space between the rear wheel space before ordering, or you'll have to return the item as I had to. This incompatibility is noted on the included install instruction, so I don't know why this is not mentioned here to save buyers' hassle.