Light Lens Replacement Kit 2'x4' w/ Silver Parabolic Louver with 1-1/2" x 1-1/2" cells makes it easy to replace a broken or missing light lens frame. Sits on ceiling grid system and installs easily. Sturdy steel frame made for 2'x4' lighting fixture. This item includes a Silver Parabolic Louver with 1-1/2" x 1-1/2" cells.