Products › 3" Louver with screen 3" Louver with screen $0.00 3" Louver with screen used for heat ventilation in sign enclosures and boxes to extend life of transformers and other sign components. Quantity: Add To Cart Added! 3" Louver with screen used for heat ventilation in sign enclosures and boxes to extend life of transformers and other sign components. You Might Also Like IBeam "Flat" Stick Bracket LED Double Power Supply Can - Vertical or Horizontal Mount (per box of 6) Clear Acrylic Block - Small #200P Glass Housing #300 Glass Housing
