Plastic Duct Grille 4 - White, Wall-Mount Grille for 4" Duct Fan bloom nutrients It is foam padded inside

It is foam padded inside and around the mouth

Since 1991 the #1 additive for hydroponics and soil gardeners world wide

The 6400K spectrum of these lamps is ideal for propagation and continued growth of most indoor plants

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Plastic Duct Grille 4 - White, Wall-Mount Grille for 4" Duct Fan bloom nutrients It is foam padded insideDesigned to be wall mounted and connected to ducting to supply exhaust air. Durable flame retardant polypropylene construction that can be painted. Features an internal manual damper which can be adjusted to open or close. Includes all screws and hardware to easily mount to a cabinet or wall. Ducting Size: 4 Dimensions: 7. 25 x 7. 25 x 2. 5 Material: PVC thermoplastic PRODUCT DESCRIPTION This duct grille was designed to be wall mounted and connected