Marinco - 1 Piece Adapter 15A to 20A - The Harbour Chandler
Marinco Straight Adapter, 30A Male - 15A Female
1FT Nema 10-30P 30Amp Dryer Plug Male to 6-20R T-Blade Female adapter,30A 125/250V Dryer 3-Prong Plug to 20A 250V 6-20/15R Adapter 12-AWG, Outlets & Accessories - Amazon Canada
L5-30/TT-30/L14-30 to Triple 5-20R Generator Power Cord Adapter, by Journeyman Pro | 30A to 20A/15amp /110V 3-Way Splitter | 3-Prong RV Distribution Cords (L5-30P) : Amazon.ca: Automotive
30A to 20A Adapter Plug – furrion-global
Parkworld 884852 RV Pig-Tail Generator 20A Male to RV 30A Straight Female Adapter Cord, NEMA 5-20P to TT-30R (2FT) : Amazon.ca: Patio, Lawn & Garden