6 Hole 4 Circuit Ground/Neutral Bars - Aluminum - Aluminum Neutral Bars for Grounding or Neutral Terminations in Panels and Control Systems6 Hole 4 Circuit Ground/Neutral Bars - Aluminum features include: Aluminum Ground/Neutral Bars are Made from 6060-T6 Tin Plated Aluminum Aluminum Ground/Neutral Bars are AL9CU Dual rated for Copper and Aluminum Conductors Aluminum Ground/Neutral Bars are Range Taking600 Volt cULus Listed Dimension Measurements = Inches Order Qty of 1 = 1 Piece Below is more info on our 6 Hole 4 Circuit Ground/Neutral Bars - Aluminum