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Is it safe to use an extension cord with 220V? - Quora
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Ballast Power Cord, 20′, 240V, AWG 16/3 – East Coast Hydro
220/240 Volt Extension Cord, 10 Ft - 14/3 SJTW 6-15P Male Plug to 6-15 - iron forge tools
Shop Heavy Duty Extension Cord - 240V | GrowGeneration
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AC WORKS 75ft NEMA L14-30 Cord 75-ft 10 / 4-Prong Indoor/Outdoor Soow Heavy Duty Locking Extension Cord in the Extension Cords department at Lowes.com
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