[hauss]

I have a backdraft with 1" tubes and plastic tanks .I ordered a 3 row square d aluminum and received a 2 row with 1/2" tubes .the old radiator is 1 3/4" thick and the new is 1 1/2" thick. I am told air will flow more through the thinner core but the old radiator has 1" tubes it is a signal pass the new is a 2 row. should I send the aluminum back ? Not sure witch would work better.