Find Cat Supplies, Cat Litter, Powders Cat Supplies in Shopzilla's Pet Supplies category: Compare prices of Cat Supplies, Cat Litter, Powders Cat Supplies and buy your new Cat Supplies, Cat Litter, Powders Cat Supply at a good price. When buying Cat Supplies, check how shoppers rated the different online shops. Simply select the store that has the Cat Supply you're looking for. If a Pet Supplies store isn't rated yet it means that Shopzilla is still collecting shopper reviews.