I'm pretty sure that this sort of thing happens for stuff in big box home improvement stores like Home Depot and Lowe's, too. Things like plumbing fixtures that

I'm pretty sure that this sort of thing happens for stuff in big box home improvement stores like Home Depot and Lowe's, too. Things like plumbing fixtures that appear to be identical to counterparts in smaller stores will have off-by-one or suffixed product numbers, and are made with cheaper plastic internal parts than when purchased elsewhere.