Great Plains Mastiff
You Shop. We Donate.

For every new customer purchase through this site, Chewy will donate $20 to Great Plains Mastiff.

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About Great Plains Mastiff

Great Plains Mastiff Rescue's goal is finding a forever home for those Mastiffs that they rescue. All Mastiffs that come into their care are spayed/neutered, vet checked, given current vaccinations, tested for worms, parasites and heartworms. They also microchip all of our Mastiffs!

Great Plains Mastiff Website

30% Off Your First Autoship and Free Shipping on Orders Over $49

It's Just That Easy

  • Over 1,000 brands that you know and love
  • Expert pet advice whenever you need it, 24/7
  • 100% satisfaction guarantee on any item
  • Free shipping on orders over $49
  • 30% OFF your first Autoship order
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*Offer good for first time customers, one per household.

Dedicated to Pets in Need

We're dedicated to supporting non-profit organizations that help animals in need. To learn more about the Chewy Rescue and Shelter Network, email us at

Dedicated to Pets in Need