Review on Kent Marine Magnesium 16 Ounce Bottle by Heidi Wilson

I order these almost every week as there is a max of 3 per order and there is a limit between orders. (I don't know why, I have a 500 gallon system and I need as many as I can get) Great price. Excellent customer service. Had a problem with 1 bottle, got a replacement the next day. Without a doubt I recommend the product and the company.