Using this Brizo Beauclere shower arm and flange is easy. First, make sure your shower pipe has the right 1/2' NPT threads. Then simply screw the shower arm onto the pipe, followed by attaching the flange. For best results, use a wrench to tighten gently but don't over - do it as it might damage the parts. As for maintenance, clean it regularly with a mild soap and a soft cloth. Avoid using abrasive cleaners as they can scratch the finish. If you notice any leaks, check the connections and tighten them if needed.