Malleable Iron Pipe Fitting, 3/8 Inch 90 deg Street Elbow

American Briggs Standard pipe threads, yes. That's the threading used on this 3/8 inch street elbow, so as long as your existing fittings and pipe are cut to that same standard, you're going to get a solid, reliable connection. Each opening is also chamfered, which makes getting everything lined up and hand-tightened a fair bit easier before you go to wrench it down.