NEMA 1 HVAC stackable Grey with lockThicker 14-gauge steel means no twisting.Left or Right hand installation without having to remove cabinet.Mount cabinets side-by-side to save a ton of space.8 knock-outs for easy inter-cabinet connectivity eliminate ugly conduit and save time.Available in 24x20x8 or 36x24x8 with or without back plateOptional back plate Perforated, lightweight design easy install ( select option in order)