Chewy.com has several Nutro treats as well as wet and dry dog and cat foods with a B1G1 free offer, must add quantity of 2 to cart, discount will be applied automatically.
I was able to order 4 bags of the same dog food in one transaction and the discount came off twice.
Free shipping with purchase over $49.
Save even more with autoship, which can be cancelled at any time.
Edit: Deal is not expired, it is still showing. I don't know if this is a targeted deal as some are saying they cannot see it. Try logging in to Chewy.com.
My order just arrived via FedEx this morning.