Product review (3 stars): It could be 309F or it could a lot higher like model #3977394
Unlike the advertised picture this item came with absolutely no model number etched on it. It could really be anything. In particular it does not tell you what the temperature setting is. It could be 309F or it could a lot higher like model #3977394. This piece of equipment is the last safeguard between you dryer overheating and your house burning down. It is crucial it be the right one. But I have no way to tell.