[4-in-1]15 Amp Household AC Plug to 20 T Blade Female 1 Pack, Black

Compatible 1: Nema 5-15P 15-AMP Male(125V) to Nema 5-15R 15-AMP Male(125V) Female ac adapter. Compatible 2: Nema 5-15P 15-AMP Male(125V) to Nema 5-20R 20-AMP Male(125V) Female ac adapter. Compatible 3:Nema 5-15P 15-AMP Male(125V) to Nema 6-15R 15-AMP Male(250V) Female ac adapter.

eBay