Swirl Diffuser Plenum Box 500 Swirl Diffuser Plenum Box 500

Swirl Diffuser Plenum Box 500

£65.00
In Stock
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Estimated Delivery: 2–5 Working Days

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The Swirl Diffuser Plenum Box 500 is a high-efficiency air distribution unit designed for HVAC systems, providing uniform 360° airflow for optimal comfort. It integrates a plenum box with a swirl diffuser to ensure smooth, draft-free air delivery in commercial, industrial, and residential spaces. The 500 mm size makes it suitable for larger ductwork applications, offering precise, quiet, and efficient air distribution.

Material:

  • Plenum box: Galvanised steel or powder-coated sheet metal for durability

  • Diffuser: Aluminium or steel with engineered swirl blades

  • Corrosion-resistant finish for long-lasting performance

Specifications:

  • Size: 500 mm (square or circular, depending on model)

  • 360° swirl airflow distribution for uniform air circulation

  • Compatible with standard duct connections

  • Reduces noise and drafts in conditioned spaces

  • Suitable for ceiling, wall, or floor-mounted HVAC installations

  • Durable and corrosion-resistant construction

  • Easy installation with standard mounting hardware

Key Features:

  • Provides uniform air distribution with 360° swirl pattern

  • Durable, corrosion-resistant construction for long service life

  • Quiet operation improves occupant comfort

  • Minimizes drafts and ensures even airflow

  • Easy to install and maintain in ducted HVAC systems

 

At Direct Duct Supplies, we are committed to delivering your orders quickly, safely, and efficiently. Below you will find our shipping procedures and policies. If you have any specific delivery deadlines or special requirements, please contact our team and we will do our best to assist.




We work hard to get our customers what they need when they need it. Below you will find information on our delivery service. If you have a particular need or deadline, please contact us and we’ll do our best to accommodate you.

Delivery Charges

Delivery charges vary depending on the size, weight, and value of your order. Shipping costs are calculated at checkout and clearly displayed on the My Basket page before you complete your purchase.

We offer a range of delivery options, including free delivery on selected orders, with standard delivery charges typically ranging between £20 and £40 depending on the service selected.

Delivery Time (UK)

We offer fast and reliable UK delivery, with most orders arriving within 2–5 working days from the date of purchase.

Smaller items typically arrive within 2–4 working days, while larger or heavier items may take 3–5 working days. Delivery times may vary slightly during busy periods or holidays.

Easy & Convenient Delivery

We use a combination of in-house logistics and trusted UK courier partners including Royal Mail, DPD and DX. This allows us to provide reliable delivery coverage across the UK. Once your order has been dispatched, you will receive an email confirmation with tracking details. You can also track your delivery via the My Account section.

Next Day Delivery

We offer next working day delivery on selected items and order types. Availability and pricing depend on the size, weight, and order value. Please contact us prior to ordering to confirm eligibility and we will do our best to arrange this.

International, Scottish Highlands, Islands & Northern Ireland

We are able to ship orders internationally, as well as to the Scottish Highlands and offshore locations. Please contact us for a delivery quote before placing your order.

Please note that some items may not be eligible for international shipping due to size or weight restrictions.