10x4 standard linear slot diffuser - texas buildmart - modern ac vent covers for ceilings, walls & floors - commercial grade hvac registers, grilles & vents - home decor & wall decor for amazon home texas buildmart texas buildmart offers high quality standard linear slot diffusers. this modern ac vent cover shoots a 90-degree spread with option to adjust to one side or the other. these have decorative directional dampers. modern, crisp, clean lines and architecturally appealing. solid extruded aluminum profile with welding - electrostatic paint which makes it easy to clean because of it's dust-resistance. this white air vent register can be used as a supply air vent cover for ceilings, walls, and floors, and as a return air vent covers register but looks like a modern contemporary looking fixture. if our modern ac vent cover is used as a return air vent cover, please make sure the air vent cover is placed in the full open position or remove the directional dampers. update your ceilings, walls & floor vents with our modern ac vent covers and it will update the entire look of your home or office space. rejillas para aire acondicionado de casa blanco. we make all sizes from 6x4 to 30x24 standard sized modern ac vent covers for the modern day home. *this is a design and utility patent pending product*