You can find Kirkland options in just about every category, and Costco fans like to muse over which brand-name company is ...

Often made by big-name manufacturers, Costco's Kirkland products offer quality at low prices. But where does the warehouse giant source its bottled water from?

Costco's Kirkland Signature brand water is affordable and crisp, but there's a third-party brand who's actually bottling the water for Kirkland to sell.

In the case of Kirkland Signature's bottled water, the credit must go to none other than Niagara Bottling, LLC. Read more: The Surprising Way Costco Slices Up Its Pizza To Uniform Perfection.

Costco offers its own brand of in-house bottled water. But if you've ever wondered who actually makes Costco's Kirkland Signature water, we have the answer. Costco offers its own brand of in-house ...