handua fits 14x30 and 30x14 duct opening | return air floor grille by handua | walkable vent cover grill for floor | brown | heavy duty fixed blades | outer dimensions: 15.75"w x 31.75"h 1 14"w x 30"h [duct opening] is up for auction in Tools & Home Improvement. The current bid is $1.00, 99% below the $70.31 MSRP, in Good Condition. This auction has ended — similar items appear in live auctions regularly.