Thread: Heater Core Recommendation

Hi, first post. My heater core is leaking in my 2004 Grand Prix, so it looks like I need to replace it. I found the heater core replacement write-ups, and I think I'm good with that, but I didn't see if there was any particular brand/part number that I should use. Rock Auto has 4 or 5 different parts, and they vary quite a bit in price. Is there a particular one I should go for, or avoid? Thanks!