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Where to get info and buy Grundfos Alpha 3 circulator pumps

Chris_51 Member Posts: 60
edited October 2022 in THE MAIN WALL
I've been trying to get info on a direct swap out for a Grundfos UP43-75F. I think my application will be fine with 20 GPM or maybe even 15.

The local guy reads from his computer what is in stock. But can't tell the pipe spacing. The online guy is about the same. He says he is just a distributor.

I have some pumps that are 6.5 inches and some that are 8.5 inches. The 8.5 inch pumps have huge flanges.

Any ideas?