10x4 Matte Black Aluminum Floor Register - Modern Design (Duct Opening) Steel this diffuser is a practical

this diffuser is a practical replacement path

The "8×8" refers to an approximately 8" × 8" opening

with unfiltered air passing through at the vent cover level

Solid alloy aluminum frame — rust-proof

It is not rated for direct rain exposure

10x4 Matte Black Aluminum Floor Register - Modern Design (Duct Opening) Steel this diffuser is a practicalCHECK SIZE BEFORE PURCHASE: This 4x10 aluminum floor register fits a 4" 10" floor duct opening the hole in your floor, not your old register face. See the full sizing guide Drop in floor replacement for any 4" 10" floor duct opening no remodeling, no contractor required. Modern aluminum design with a flush, low profile face that sits level with most floor surfaces. Solid extruded aluminum rust proof, wont dent like stamped steel, zero plastic