Amazon.com: WindyNation 4/0 Gauge AWG (6 Feet Black + 6 Feet Red) Power Inverter Battery Cable Wire Kit for DC to AC Inverters RV, Car, Solar, Marine, Off-Grid : Automotive
Ancor Marine Grade Tinned Copper Battery Cable 4 AWG, Red, 25 ft. 113502 - The Home Depot
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Ancor Standard Battery Cable Assembly- 2 AWG, 3/8-in Stud, 48-in Length, Red at Lowes.com