TENINYU 4-in-1 NEMA 5-15R to 5-15P, 5-20P, 6-15P, 6-20P Adapter - 15 Black
Manufacturer : TENINYU INC. Conveniently converts a 20-amp T-blade plug end into a standard household plug that can be used with any standard grounded 110 V outlet. Plugs into 15 Amp outlet to accept either 15 amp or 20 amp plugs.