NEW YORK (CNNMoney.com) - When it comes to satisfying the hydration needs of man's best friend, tap water just doesn't cut it anymore.

K9 Water Co., a Valencia, Calif.-based company, is selling a line of vitamin-enriched bottled waters for dogs over the Internet.

A four-pack sells for $7.49 and comes in four flavors -- Toilet Water (chicken), Gutter Water (beef), Puddle Water (liver) and Hose Water (lamb). The water also comes in 12 packs and 24 packs, which cost $19.99 and $35.99, respectively.

"We are dog lovers and pooch parents ourselves, so we had our formula tested in an independent lab by a veterinary nutritionist to make sure it is healthy for your dog," founders Don Magier and Susan Goldberg wrote on the company's Web site.

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