Differnece in cor15 and cor20

[Fish_are_stoopid]

I have a cor15 and a cor20. Cor15 wasn't enough so upgraded to a cor20. Cor 20 power supply goes out. I install the cor15 and run that. White out fries my eb832. Toss cor15 in same bucket as cor20 was in. Now I dont know which is which. Are they the same pump and just that controller unit is different?

 

[Gtinnel]

I only have a COR-15, but I have always heard that the pump bodies are the same.