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Ships within 48 hours · Estimated delivery Oct 14 - Oct 19
Modern step-down design with 4-way air diffusion
T-Bar Modular Core Diffuser with Round Collar 18-20
Standard Features * Lightweight Aluminum vent louver * This is a larger version of the 4901 series * Flush face * Spring clip mounting * Able to withstand wet and corrosive environments * Easily installed using only a high grade silicon caulk * Satin Anodized finish Options * IS - Insect screen * Standard Color or Designer Color Finish available on this product
All component parts
One-piece removable slide damper for off-season closure
Filter Grille FG-18X20 Filter Space:For 4" Deep Filter Modern step-down design with 4-wayStandard Features 1 2" spacing dual angular louvers for strength and maximum free area Stamped steel face with roll formed frame Hinged removable face with hinges parallel to longest side Hand operated lever for easy filter access and cleaning 4 way reversible door on square sizes 2 way reversible door on rectangular sizes Concealed mounting holes with mounting screws Holds up to a 1" filter (not included) with filter retention tabs (FG1) Rust
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