Buyer beware of Best Buys sales tactics. Their salesman told us we needed these with the gas stove we bought there so we got them. Had to wait for our permit to get it installed and find out we didn't need them and they would not take them back because of a 15 day return policy. First of all, who has a 15 day return policy but to boot won't make an exception when their sales person makes the mistake. Even spoke to a supervisor. I hadn't done business with Best Buy in years and totally forgot when I was shopping online how poor of a company they are to do business with. I won't forget again. What company loses a customer over $100 for life? Best Buy that's who!!