THESE ARE FURNACE BLOWER ASSEMBLIES. FOR CENTRAL AIR HEAT PUMP AND ELECTRIC HEAT SYSTEMS. TO GET YOU THE RIGHT BLOWER FOR YOUR NEEDS. JUST MESSAGE US AND WE’LL HELP! CAGE, MOTOR, AND HOUSING ASSEMBLY. USED TO REPLACE OR OLD EXISTING FURNACE BLOWER ASSEMBLY, OR USED FOR OTHER VENTILATION PROJECTS. VERY POPULAR FOR USE AS SHOP FANS AND VENTILATORS. 240v VOLT FOR MOST HVAC ELECTRIC AIR HANDLERS FOR HEAT PUMP. I HAVE SEVERAL, YOURS WILL VARY FROM PICTURE. MOST ARE 3 TO 5 TON (AC) SIZE. SIZE TO REPLACE YOUR EXISTING FURNACE ASSEMBLY? CONTACT ME WITH OPENING DIMENSIONS, AND I’LL MATCH AS CLOSE AS POSSIBLE. RUN TESTED AND WORKING GOOD. FOR THOSE LOOKING FOR A BLOWER TO REPLACE YOUR EXISTING GAS FURNACE BLOWER. MATCH THE WIDTH, MATCH THE BLOWER. TYPICALLY, ALL BLOWERS HAVE THE SAME DIMENSIONS, EXCEPT AS THE BLOWER GETS BIGGER, IT GETS WIDER. WIDER, THE AIR OUTLET OPENING WIDTH GETS WIDER. MOST ALL BLOWERS HAVE AN AIR OPENING THAT IS 7 TO 12 INCHES WIDE. THE AIR OPENING WIDTH, WHICH IS THE SAME AS THE BLOWER HOUSING WIDTH, IS ABOUT 8 INCHES IN A 2 TON, 50,000 BTU FURNACE BLOWER, GOES TO 13 -14 INCHES IN A 125,000 BTU, 5 TON BLOWER. THE RADIAL DIMENSIONS GET A BIT LARGER AS THE BLOWER GETS LARGER, TOO. PLEASE PROVIDE THE OLD BLOWER WIDTH, (FLAT SURFACE TO FLAT SURFACE) SO IT CAN BE MATCHED AS CLOSE AS POSSIBLE. BLOWERS WITH MATCHING WIDTH HAVE MATCHING CFM CAPACITY, SO A SIMILAR WIDTH BLOWER WILL WORK. THE REPLACEMENT BLOWER MAY NOT BE EXACT, SO SPECIAL MOUNTING MAY HAVE TO ADDED TO SECURE THE BLOWER.