21" X 38 1/4" Window clamp ring

This window ring is used with our 21" X 38 1/4" Double paned window. This ring is 3/8" thick. We only have one of these left.

Please measure carefully. Measurements can vary by 1/4".

Outer Dimensions are: 21" X 38 1/4".

Inner Dimensions are: 19.5" X 38".