Product review (3 stars): They work, I guess
I bought these when the idiot light on my fridge told me I needed to replace the air filter.  LG filters are outrageously expensive at full price and buying these at a "discount" is merely extremely expensive for what they are -- a 3.5-inch square of filter medium in a plastic holder, held together with a couple of pieces of tape.  But the idiot light on the fridge is now off, so I guess that's worth something.  These OEM's do have us well trained, don't they?