An air hose might not be the most glamorous component of a tool kit, but for many builders, it's a vital player in any construction job. After researching the market and talking to builders across the country, FHB associate editor Justin Fink learned that there is no all-around perfect air hose. The optimal choice depends on the tool being used with the hose, the budget, the builder's work habits, and the working environment. Air hoses are made either of rubber, PVC, nylon, or polyurethane; each material has assets and liabilities depending on where it is used. This article includes sidebars on job-site air-hose repair, hose diameter, and metal fittings for air hoses.