If the plastic cover on your under cabinet light has yellowed, cracked, or gone missing, KASTLITE replacement lenses bring the fixture back to full output. We manufacture these covers from non-yellowing acrylic in the curved profiles that match most standard under cabinet fixtures. Finding the right under cabinet light lens replacement usually comes down to two measurements: the height and width of the lens cross-section.
Shapes and Sizes We Carry
Our curved under cabinet light cover (Shape A) fits the most common residential and commercial fixtures. We also stock a smooth curved lens at 1-3/8" H x 2-3/4" W for narrower profiles, and a second curved option for fixtures with slightly different dimensions. These lenses snap or slide into the existing channel on your fixture, so no tools or adhesive are needed for most installations.
How to Measure for a Replacement
Remove the old lens (or measure the opening if the original is missing). Note the height of the curve and the overall width of the channel. Compare those numbers against the dimensions listed on each product page. If your fixture uses a flat lens instead of a curved one, check our replacement lenses collection for additional styles including flat prismatic and frosted options.
Still not sure which cover fits your fixture? Send our team a photo with a ruler in frame and we will identify the correct replacement. Browse related products in our light covers and diffusers collection.
