Ferguson has announced the purchase of the Clark Group, Inc., based in St. Louis, MO. Clark and its three affiliates, Clark Sprinkler Fabrication of KC-MO, Inc., Firefox Supply Corp., and Clark Sprinkler Fabrication of IN, Inc., were purchased through an asset transaction completed on Nov. 22, 2004. The Clark Group was acquired by Ferguson Fire and Fabrication, Inc. (formerly known as Sierra Craft, Inc.). The Clark Group's main business is the fabrication and distribution of fire protection supplies.