For Model 230 train horns. Increase air flow and push your train horn to unheard of decibel levels. The Ultra BlastMaster™ provides everything you need to add an additional two VX6003 solenoid valves to your Model 230 Beast™ train horns. The Ultra Blastmaster valve upgrade will push your Beast™ over the edge. Prepare your eardrums; they’re screwed.
