Exactly what I ordered and in a timely manner.
They were perfect in every way.
Under Cabinet Lens: 1-11/16" wide x 1" high (4113RE-315RW-)
The undercabinet fluorescent fixtures needed to updated with LED bulbs. However the fixtures were installed quite a while ago and when I tried to replace the lights by pulling off the diffusers the plastic was so old that they were brittle and shattered. Your replacement diffusers fit perfectly and now the fixtures are completely updated.