[Jon G]

Bryan I can give you a measurement to where mine is, the tank builder made me an exact copy of my original tank so at least you will be close, I'll measure tomorrow and grab a pic for you too. When I measured I was a little off and it worked out good because If I was right over it I would not have been able to get the sender out. I could just get the screws out and the sender came right out, my worts case was cut the hole bigger and put a larger access in.