The MP-500NPT-TA is a tube adapter that connects standard 1/2-14 sched-40 NPT pipes to channel strut. This adapter allows speakers and other objects to be mounted to channel strut using standard off the shelf 1/2-14 sched-40 NPT pipes. The MP-500NPT-TA is designed to hold overhead objects with a maximum weight of 80 lbs. Maximum length of 48” long pipe is recommended.