Had some issues with my central air. Eventually figured out the condensation drip line was plugged up. Unfortunately when it was installed they put no easy way in to actually clean it, so I ended up cutting it off all the way up to the "what I thought" was a standard 3/4 inch elbow that came out of the furnace.
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So I went to Home Depot and bought a 3/4" elbow took it home and tried to put it on and wrecked it. Went back and bought another one and was more careful but still wrecked it. Tried putting this one back on and it goes in perfectly. Looking at the 2 elbows, it looks like this one is a slightly different size. Here is the exact part from the old elbow.
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So what exactly am I looking for? The Home Depot one won't work. Where should I be looking for the correct elbow?
Thanks so much