For Model 730 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 730 Demon™ train horns. The Ultra Blastmaster valve upgrade will push your Demon™ over the edge. Prepare your eardums; they’re screwed.
NOTE: We upgraded the model 230 horns to the Vortex 6 all brass solenoid valve in 2017. Model 230 horns with the all brass Vortex 6 valves use the 6885 Ultra Blastmaster kit. Model 230 horns still in the retail box will indicate if it includes the upgraded Vortex 6 valve on the full color retail box.