Truaire A5403SD-SQ12 Lay-in Directional Diffuser 12 Inches 3-way Aluminum White

Product Description

The TRUAIRE A5403SD-SQ12 is a lay-in directional diffuser designed for use in suspended ceiling systems. It measures 12 inches and delivers a 3-way directional airflow pattern. HVAC technicians and mechanical contractors use this diffuser to distribute conditioned air evenly across a room. It installs directly into standard T-bar or drop ceiling grids, making it a practical choice for commercial and light-industrial applications. The aluminum construction gives the unit long-term durability in high-cycle air distribution environments. The white finish blends into standard ceiling tiles and grid systems without drawing attention. Lay-in diffusers like this model are common in office buildings, retail spaces, schools, and healthcare facilities where clean ceiling aesthetics and reliable air distribution are both priorities. The 3-way airflow pattern allows air to discharge in three directions simultaneously, which improves room coverage compared to single or two-way diffusers. This makes the A5403SD-SQ12 especially useful in corner or perimeter ceiling placements where full 4-way coverage is not needed. The unit is part of the TRUAIRE product line manufactured by RectorSeal, a recognized name in HVAC accessories and air distribution components. HVAC pros installing variable air volume systems, fan coil units, or rooftop package units will find this diffuser a reliable and straightforward choice. Proper diffuser selection affects thermal comfort, air velocity at occupant level, and overall system efficiency. Choosing the right size and airflow pattern reduces drafts and cold spots. The 12-inch size suits medium to large supply air outlets in commercial duct systems.

• Lay-in design installs directly into standard suspended T-bar ceiling grids
• 3-way directional airflow pattern provides wide room coverage from corner and perimeter placements
• Aluminum construction with white finish offers durability and clean aesthetic integration

Product Highlights

The TRUAIRE A5403SD-SQ12 lay-in directional diffuser combines durable aluminum construction with a 3-way airflow pattern in a 12-inch size, making it a dependable choice for commercial HVAC air distribution in drop ceiling applications.

Product Information

Standard Information

• Brand: TRUAIRE
• Manufacturer Part Number: A5403SD-SQ12

Technical Specifications

• Type: Lay-In Directional
• Size: 12 inches
• Material: Aluminum
• Number of Ways: 3
• Finish/Color: White
• Manufacturer: RectorSeal
• UPC: 803492142254