Tri Trap 3 Way Extension Cord Cable 12 Gauge Extra Heavy Duty 3 Outlet 2FT - Amazon.com
WEN Extension Cord Splitter 3-ft 10 / 3-Prong Indoor/Outdoor Sjtw Medium Duty General Extension Cord in the Extension Cords department at Lowes.com
10 Foot Triple Tap Extension Cord
Amazon.com: 18 Inch Power Extension Cord 3 Way Splitter- 1 to 3 Splitter Outlet Power Cable Black SJT 16 AWG Indoor 3 Prong Extension Cord, 3-Outlet Plug 1.5FT Electrical Short Extension Cord
25' Sun Joe 10/3-Gauge 3-Way Split 3750W Generator Series Extension Cord
JobSmart 25 ft. Indoor/Outdoor Pro Power Extension Cord at Tractor Supply Co.
TT-30P Male to 3X 5-20R Female RVs Power Adapter 3 Prong 30Amp to 15Amp RVs Adapter Extension Cord 3-Way Outlet Splitter - AliExpress