Product review (5 stars): I highly recommend ordering this high quality item from the seller PARTSHOUSESUPPLY.
The box sticker and inside literature say it's MADE IN THE USA. The parts look like they're high quality parts that were made in America. NAPCO is located in Michigan USA. Shipping was fast. The box arrived 7 days earlier than expected via USPS Priority 2-day. Installation was a breeze. I originally repaired the old heating element coils by following a youtube video but I would like to point out that a splice repair is a temporary fix. The reason it broke in the first place is the heating coil wires have reached the end of their useful life. The first splice repair lasted about 3 months until the coil broke again in a different place. It also blew one of temperature switches because the coil grounded out on the housing and got extremely hot. It could have caused a fire. Luckily, it didn't.