Conntek 30125 L6-20P to 6-15/20R Plug Adapter, 20 Amps 250 Volt , Black

AC Connectors 1FT 10AWG L14-30P 30A 125/250V Locking Plug to 6-15/20R T Blade 15/20A 250Volt Connector L1430620-012

Leviton 2321 20 Amp, 250 Volt, NEMA L6-20P, 2P, 3W, Locking Plug, Industrial Grade, Grounding - Black-White

NEMA 6-20 Extension Power Cord - 25 Foot, 20A/250V, 12/3 SJT - Iron Box # IBX-6153-25

Conntek 30129 15A to 15/20A Plug Adapter

Coleman Cable 03537 12/3 9-Foot Appliance/ Air Conditioning Cord, Beige

Superior Electric YGA022F Straight Electrical Receptacle 3 Wire, 20 Amps, 250V, NEMA 6-20R

NEMA L14-30P to 6-15/20R Plug Adapter - 1 Foot, 20A/250V, 12/3 AWG - Iron Box # IBX-1462-01

Conntek RUL620PR-050 50-Feet 12/3 20-Amp 250-volt L6-20 Anti-Weather, Oils, Acids and Chemicals Rubber Locking Extension Cord

Tripp Lite Heavy-Duty Power Adapter Cord 20A, 12AWG (NEMA-L5-20R to NEMA-5-20P) 6-in.(P044-06I)