What size condenser matches to it? The coil is a BA37102A07709 it's either a RCBA or RCBJ I'm not sure of the difference. I'm try to find out what size condenser to buy 2-3.5 ton? The coil it 19" x 15 3/4".

We don`t buy condensers to match coils, you should have an hvac tech to do a manual J calculation (they know what it is) to figure out what size condenser unit is needed to cool your house,this is the only right way to do it