Right Angled 4 in 1 NEMA 5-15P Power Adapter, Plugrand NEMA 5-15P to 5-15R, 5-20R, 6-15R, 6-20R AC Adapter, 15A to 20A 90 Degree Adapter, USA Male to Female Power Adapter

If you need to convert your 20A plug to 15A, this adapter does the trick.

Received it one day it's very durable I needed it so that I could plug my RV into it and I could plug that into the receptacle and close the lid works perfectly highly recommend

This is sturdy and well built and the only reason I'm not giving it 5 stars is that the socket it supposed to fit into, is so tight that it is hard to pull out. That is my problem, not the plug.

My problem was that my huge firehose-of-a-power-cord from my UPS was consistently pulling out of the wall under it's own weight. This was the perfect solution for what I need.

Great solution for attaching a large wallwart right-angled power plug which would not fit on the powerstrip I was using without hitting into other plugs. This shifted the orientation for the wallwart from sideways blocking THREE receptacles to hanging below or above the strip (depending on how I hung the strip) no longer blocking anything else.