SW-A1 Steam Bell Whistle 1/4x40 TPI 3mm Bore Multi Thread
£40.48
The whistle itself features a 1/4" x 40 TPI connection with a 3 mm bore. 1/4" x 40 TPI thread with 3 mm bore. The SW-A1 Bell Whistle is designed for use in live steam model systems, providing an audible output when connected to a steam engine.
