Proud Source Spring Water is a naturally alkaline spring water sourced from the Rocky Mountains of Idaho and the Apalachicola Forest of Florida. This Costco case includes 16 cans of 16 fl oz each, packaged in 100% infinitely recyclable aluminum with a BPA-free liner — a sustainable alternative to single-use plastic bottles.

The water is filtered through thousands of layers of ancient rock, preserving naturally occurring minerals and electrolytes including calcium, magnesium, potassium, silica, bicarbonates, and chlorides. It carries a natural pH between 8.1 and 8.5 with no additives added, delivering a crisp, clean taste. Total dissolved solids (TDS) range from 152 to 166.8 mg/L.

Proud Source is committed to environmental stewardship, pledging to extract no more than 5% of each spring's daily output. All sourcing and bottling is done in the United States.