Suggested Retail: $45. Nature Du - 20 Inch Return Air Grille - Duct Opening Size - Flat Vent Cover This 20x20 return air grille is designed for both sidewall and ceiling openings. Made of high-quality solid stamped steel, it features counter-sunk screw holes for easy installation and a durable powder-coated finish. The grille's outer dimensions are 21.75 IN W x 21.75 IN H, while it fits a duct opening size of 20 IN W x 20 IN H. The included screws allow for a quick and secure mount, significantly improving airflow and circulation in your home or office. Brand: Nature Du. [Reference: KVUtiQcGcxeSCAUDsldott]. LOT STICKER: OH002-00000678-35. Type: Regular. Size: 20 IN W x 20 IN H. Color: white. 7 CALENDAR DAY FULL REFUND GUARANTEE (FROM PRIMARY PICKUP DATE) ON THIS ITEM IF ANY ISSUE IS FOUND THAT WAS NOT DESCRIBED/PICTURED. 7 CALENDAR DAY STORAGE (FROM PRIMARY PICKUP DATE) IS ALSO AVAILABLE. THE PRIMARY PICKUP DATE IS THE DAY AFTER THE AUCTION ENDS. SEE NOTES TO BIDDER, IN AUCTION DETAILS, AT THE TOP OF PAGE 1 FOR MORE INFO.