Filter Grille FG-18X18 past 12 months Retainer cables are provided on

Retainer cables are provided on sizes 12" and larger to allow the inner cones to hang securely while adjusting the diffuser

Unique fan-shapped pattern lends to both heating and air conditioning applications

Lever operated multi-shutter damper

Fan shaped 1/2" spaced louvers

Filter Grille FG-18X18 past 12 months Retainer cables are provided onStandard 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