THIS IS A NEW STANDARD HEATER SEAL KIT FOR A 1955 1956 CHEVROLET ONE FIFTY SERIES, TWO TEN AND BEL AIR. A STANDARD HEATER HAS A SINGLE KNOB ON THE DASH, WHERE A DELUXE HEATER HAS MULTIPLE LEVERS ON THE DASH CONTROL. THIS IS ALL OF THE SEALS NEEDED TO RESTORE YOUR HEATER BOX AND BLOWER MOTOR. THESE SEALS ARE MADE IN THE USA. SKU# 4615