174036MF-143
Armstrong Pumps 816305-028 Impeller Assembly Steel S45 3.875 Replacement MPN
A nice touch with TEAC Corporation and Tascam is the included rack screws.
Armstrong 174036MF-143 S45ABMF 1/4hp Lead Free Bronze Pump
This thermostat assembly works with both line-voltage and low-voltage control systems.