Find 3 tier cat activity tree w Cat Supplies in Shopzilla's Pet Supplies category: Compare prices of 3 tier cat activity tree w Cat Supplies and buy your new 3 tier cat activity tree w 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.