Accessory vent kit for WhisperLine series Includes: two 6-Inch double inlet grilles, two back draft dampers, two clamps, zip ties, and a Y-adapter Grille pattern slotted with beveled edge and white finish Double inletBackdraft Damper: 2 (6) Clamp: 12 Grille Type: 6 Double Inlet Inlet Grille: 2 (6) Y-Adaptor: 1 (6 - 6 x 2)