The 1900SQS series incorporates the optimal performance and versatility of a 1900 series linear diffuser with the attributes of a 24”x24” lay in panel diffuser. The 1900SQS is designed to allow a ceiling tile to be inserted in the face of the diffuser to provide a smooth, clean appearance with adjacent ceiling tiles. Additionally, a variety of finishes allow the diffuser to blend, complement, or contrast with the ceiling system. The 1900SQS has individually adjustable blades to allow horizontal and vertical throw from the same unit. The blades can also be adjusted to blank off any side where throw is not required. When the diffuser is set in the 4-way discharge setting, typical isothermal throws of 12’ to 24’ can be achieved. This design makes Krueger’s 1900SQS series diffuser an ideal choice for modular office spaces where room airflow patterns can be adjusted according to cubical layout and for non-standard ceiling height applications.