Example: D120 - 0 - 40SST4
 A model D with 120 gallon capacity and a 40 KW heating element. Tank is stainless steel and operates at 480 V, 3 phase, 60 Hz power.

Option Note
Any and all optional equipment for a D model water heater must be called out in the written specifications. A model number in and of itself does not reflect any optional equipment selected.