I salvaged these myself while remodeling the home on Trimble Avenue in a historic neighborhood in Cincinnati Ohio. The house was built in 1900.

I measured the inside rim that needs to fit in the cutout on the floor and the smaller one measures 9.75” x 29.5” and the larger one measures 29.5” x 17.75”. Please view all of the pictures as they are part of the description and email me with any questions, thank you!

The floor vents are also on auction now and I am happy to combine shipping!