4 way Diffusers

Traditional 4-Way Diffusers – A Staple for Air Conditioning & Ventilation Professionals

At Ventilation Direct, we supply a wide range of Traditional 4-Way Diffusers, trusted by HVAC contractors across the UK for their reliability, ease of installation, and balanced airflow performance. These diffusers are ideal for supply air distribution, but can also be used for extraction, making them a versatile choice for both new builds and retrofit projects.

Key Features:

• ✅ Classic 4-Way Air Distribution – Ensures even airflow across the room
• ✅ Optional OBD (Opposed Blade Damper) – Enables precise airflow adjustment during commissioning
• ✅ RAL9010 White Finish – Clean, professional appearance suitable for most ceiling types
• ✅ Removable Central Core – Allows easy access for cleaning and maintenance
• ✅ Extruded Aluminium Construction – Lightweight, durable, and corrosion-resistant

Designed for Ceiling Grid Integration

Our most popular model is the tile-replacement 4-way diffuser, designed to fit seamlessly into a standard 600 x 600 ceiling grid. It pairs effortlessly with both plastic and galvanized plenum boxes, making installation quick and hassle-free for tradespeople.

Available Sizes From Stock (Neck Dimensions):

• 150mm sq
• 225mm sq
• 300mm sq
• 375mm sq
• 595mm overall size (for full tile replacement)

Extensive Stock Availability

We maintain large stocks of all popular sizes and configurations, ensuring fast turnaround for urgent projects and bulk orders. Whether you’re working on a single install or a multi-site rollout, we’ve got the inventory to support your needs.