AFCO Aluminum radiators allow your car to remain at a constant temperature, which means that power delivery is more consistent. The uniformity of an all-aluminum construction radiator allows for the best pound for pound heat transfer characteristics.100% Aluminum construction (no epoxy)Furnace brazed core2 rows of 1.25" tubesTanks are made of .080” 3003 aluminum for strength and durabilityTIG welded by skilled craftsmen in the USAFactory pressure-testedFiller necks feature screw-in bleed – won't crack or leak with ageSide brackets are reversible for mounting fore or aft of the core support