Frosted white replacement plastic cover lens for Irwin Yacht overhead fluorescent lamps. Are your covers on your Irwin cracked or yellowing? These reproduction OEM covers will make the lamps look brand new, and are the perfect answer for the discontinued lamps on your Irwin. These are manufactured for us by an Irwin specialist, so they fit the original precisely, and require no modifications for fitting your fixtures. Can also be drilled to install switches. We have the linear type for the T8 fluorescent, and the square type for the circular fluorescent. The long linear type are 25"L x 3,5"W x 2.5"T The square type are 10.75" x 10.75" x 2.5"