Here is how you can get that price:
Go to the product page here.
Clip the $2 off coupon on the page.
Check out with the subscribe & save option and you will get two bottles for just $9.37 SHIPPED (with the coupon too)! Using the Subscribe & Save will give you that price and the free shipping. Once your order has shipped, you can easily go back into your Amazon account and cancel the subscribe & save.
That is just $4.69 per bottle for the BIG size! Fantastic price!! Hurry over to Amazon while the price is down!