Key Hose, the largest hose manufacturer in the world. Dothan, Alabama January 2014 - KFH Industries, largest hose manufacturer in the world and the home of Combat Ready, the Fire industry's premier firefighting attack hose. Key has two plants, the primary facility with 250,000 square feet and a second at over 60,000 square feet. Plans for further expansion are on the horizon. These facilities operate six days a week 24 hours each day. Products produced include, but are not limited to, a full line of Municipal and Industrial hose. Specialty markets such as Agriculture, Mining, O & G Frack, and Military segments are served as well. As the leader in hose manufacturing, Key is constantly investing in the research and development of water movement technology to provide the very best in safety, performance, and efficiency to its valued customers since 1988.