"1/3 HORSEFAN MOTOR AND FEATURESSEALED SHAFT TO PROTECT FROM DUST & COOLING LOSS;MOTOR IS DIRECTLY MOUNTED TO THE BULKHEAD;RAISED LANCE FINS ON THE EVAPORATOR AND CONDESER ENHANCE HEAT TRANSFER;COPPER TUBING HAS BEEN RIFLED INSIDE TO CREATE TURBULENCE IN THE COOLANT,WHICH ALSO ENHANCES THE SYSTEM'S ABILITY TO DISSIPATE HEAT;HAS BEEFED UP MOUNTING SYSTEM THAT INCLUDES SHOCK-ABSORBING COMPRESSOR MOUNT AND HALO MOUNT SYSTEM WITH A REINFORCES TOP PLATE;NOT CHARGED WITH (ECO-FRIENDLY) R-410A"