Suggested Retail: $45. Nature Du - 20 IN Return Air Grille - Flat Vent Cover This return air grille features a durable powder-coated finish that resists flaking, scratching, and fading. Designed for either sidewall or ceiling mounting, it allows for quiet and efficient airflow, thanks to the 40-degree angled fins. Installation is straightforward with included screws, making it easy to enhance your home's ventilation. The actual outer dimensions of the grille are 21.75 IN W x 21.75 IN H, designed for a duct opening of 20 IN W x 20 IN H, ensuring a snug fit. Brand: Nature Du. [Reference: qifNDRfLW1rvQ37WObbwyU]. LOT STICKER: OH002.10-00000021-43. Type: Regular. Size: 20 IN W x 20 IN H. 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.