I wish that I had seen this comment earlier. I placed an order with them for two cases of air filters. The total was over $99, so I thought that I would get the free shipping, and it showed that I was getting free shipping when the order was placed. When they processed my order, they split it into two orders (1 order for each case of filters) and charged me shipping on each order. Shipping was $10 on one of the orders and a little over $20 on the other order. So, I ended up paying around $30 of shipping for a $100 order. These guys billing practices are questionable for sure. So much so, that I am considering filing a complaint with the FTC.