Champion Power Equipment Inverter Parallel Kit for Models 100233, 100261, 100263 - Parallel Cable Kit in the Generator Accessories department at Lowes.com
Amazon.com: Champion Power Equipment 48034 25 ft. 30A 125V Generator Power 3750 Watts (L5-30P to Three 5-15R) Extension Cord, yellow : Patio, Lawn & Garden
25 ft. 30A 125/250V Flat Generator Extension Cord - Champion Power Equipment