
Whistle with 1/4" x 40TPI fittings for adding to Miniature Steam Boilers - 3" & 4" only.
Normally connected in the steam line running off the boiler as pictured below.
Whistle with 1/4" x 40TPI fittings for adding to Miniature Steam Boilers - 3" & 4" only.
Normally connected in the steam line running off the boiler as pictured below.