Adaptive Technologies Group MP-500NPS-TA Channel Tube AdapterThe MP 500NPS TA is a tube adapter that connects standard 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 14 sched 40 NPT pipes. The MP 500NPS TA is designed to hold overhead objects with a maximum weight of 80 lbs. Maximum length of 48 long pipe is recommended. Features For overhead loudspeaker applications. Adapts to standard schedule 40 pipe.