1FT 12-AWG Nema 5-15P to L5-20R Adapter,15-Amp 125V Household Plug to 20A 125V L5-20R Locking Industry Degree Female Receptacle Cord

Use this for my pool to go between filter and extension cord. Works perfectly

Excellent adapter !

This didn’t work and we had to send it back.

I was looking for something short and heavy duty. This fits the the bill and works as intended. I haven't had any issue with power current going from my UPS to power distribution strip to my equipment. Good value for the money, IMO.

Didn’t work with our ups