RPBL-400 OUTDOOR HEAT&VENTILATING UNIT; POWER VENT, SPARK IGNI,CURB CAP,24V CONTROLS. 9,000CFM, ESP.75IN. NAT GAS, ALUMINIZED HEAT-EX, 2-STG VALVE W/UNIT MOUNT DUCT-STAT (MAKE-UP AIR OR CONTINUOUS BLOWER),30A,600V DISCONNECT, REZNOR