Threaded Base Steam Train Whistle

This is our standard 5 chime steam whistle with a valuable addition, the interior of the air inlet is threaded to accept 3/8" NPT pipe thread. This whistle can be blown by Mouth (human powered), Air, or Steam 100% Made in the USA Aluminum Steam Train Whistle 2" in diameter and 9 3/4" long 100db @ 12"