Return Air Box to suit Return Air Grill

Return Air Box (RAB) — Engineered for Maximum Return Air Efficiency

Designed to work seamlessly with return air grilles, the Air Junction Return Air Box (RAB) ensures smooth, unrestricted airflow back to your HVAC system — reducing static pressure, improving system performance, and extending the life of your equipment.

Why Use a Return Air Box?

• Improved airflow efficiency — Properly channels return air to minimise turbulence and pressure drop
• Reduced system strain — Helps your HVAC unit run at its designed capacity without overworking
• Clean, professional finish — Conceals ductwork connections behind the grille for a neat installation
• Versatile sizing — Available in a wide range of face dimensions and duct collar sizes to suit most residential and light commercial applications

Specifications

• Available face sizes: 400×400 to 1150×550 mm
• Duct collar options: 1-way (12", 14", 16") and 2-way (14", 16")
• Suitable for use with standard return air grilles
• Designed for ceiling and wall installations

Select your required face size and collar configuration from the variant options above. Not sure which size you need? Contact our team for sizing assistance.