Name:Linear Slot Diffuser Model: LSD(LFK-7C) Material: Aluminum,Frame thick:1.2mm Feature: 1.Designed for variable air volume systems. 2.The blades powder coated black and the frame powder coated white 3.Both the directions and volume of the discharged air can be adjusted by moving the pattern controllers, which can set vertical, level, or oblique air current. 4.Available with 1-6slots. 5.The cutting part adopts the unique way of continuation. Even the over lengthy size has an integrative sense too.