MTH Z-4000 400 Watt Advanced Digital Transformer for MTH ProtoSounds Locomotives

MTH Hobby Transformer Z-4000 40-4000

O Gauge MTH Z4000 Dual Transformer

MTH 40-4000 Z-4000 400W Dual Control Transformer--Looks and Works Great!

MTH 40-4000 O Z-4000 400W Dual Control Transformer LN

40-4000 MTH Transformer NEW IN A SEALED BOX NO SHIPPING

MTH Z1000 Transformer 40-1000 (Brand New Factory Sealed)

MTH Rail King Electric Train Z1000 Transformer Z Controller No Power Cord NIB