2 - Duct opening dimensions 5 3/4" x 14"(Overall size 7 3/4" x 16") Surface mount Eggcrate design in Unfinished Red Oak no damper for $83.00 each - $166 total
1- Duct opening dimensions 19 5/8" x 14"(Overall size 21 5/8" x 16") Surface mount Eggcrate design in Unfinished Red Oak no damper for $254.00 each
