Edelbrock Polished Water Neck for Small Block

Up for sale is a brand new Edelbrock water neck P/N: 4816 for small blocks. I cannot use this housing because my intake does not have a recess in it for the thermostat and this housing does not have one either. When installed on my motor (340), it leaked on the dyno with the thermostat installed. Once we removed it, the leak stopped. I had to buy a thermostat housing with a recess in it to fix my issue. Otherwise, this is brand new and has a new o-ring in it. Mounting hardware is included. I am asking $20 shipped or best reasonable offer.