Junction Box Adapters are installed using a standard PVC coupling, offering a trouble-free and reliable PVC connection. In addition to providing a strong connection, the JBA also maximizes the interior box wiring space unlike the use of male adapters (TA). Utilities cable communications residential airports subways bridges & tunnels mines marinas water/sewage treatment plants pulp & paper industries street & highway lighting food processing plants agricultural parking garages car washes fish plants steel mills Made from durable, corrosion resistant PVC Solvent welded connection for a watertight fit Little space needed to maximize the interior wiring space