WATERBURY, Vt. » Keurig Green Mountain struck a deal with Dr Pepper Snapple to make single-serve capsules for use in Keurig’s soon-to-be released cold beverage system.

The companies did not disclose terms of the agreement Wednesday or specify which particular brands will be included. The soda maker, based in Plano, Texas, sells Sunkist, Snapple, Dr Pepper, Hawaiian Punch and other brands.

The multiyear deal will make Keurig Green Mountain Inc. the exclusive producer in the U.S. and Canada for the drinks that use fountain syrup in the new Keurig Cold platform.

Keurig Cold, which is expected to launch in the fall, lets users make cold carbonated drinks, sports drinks, teas, juice drinks and enhanced waters at home.

Shares of Keurig Green Mountain, which is based in Waterbury, Vt., rose more than 3 percent to $131.22 before the opening bell.

Dr Pepper Snapple Group Inc., like other soda makers, has been trying to maintain sales as American tastes and diets shift.

U.S. sales volume of carbonated soft drinks fell 3 percent in 2013, according to a report released last year by Beverage Digest, an industry tracker. That was a steeper drop than the 1.2 percent decline in 2012 and brought total soda volume to the lowest level since 1995.