5 Pack Of Brass Insert Bosses 1/4 BSF For Mamod Live Steam Boiler Repairs SV & Whistle
NEW - Trade pack of 5 Off
1/4 BSF brass boiler boss, these are as used on the Mamod whistles and safety valves, can also come in handy if fitting 1/4 safety valve or whistle onto other models too.
(Shown on left in picture)
Useful to have in the spares box.