Estimated Delivery: 2–5 Working Days
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View transport policyThe Elta Clearflow CF400 Three‑Phase AC Roof Fan – 400mm is a commercial and industrial roof‑mounted centrifugal extraction fan designed for efficient vertical discharge ventilation. Part of the Clearflow CF series, it features a heavy‑duty pre‑galvanised steel casing and backward‑curved impeller for strong, reliable airflow with minimal maintenance. The vertical discharge directs exhaust air away from buildings, reducing odours and recirculation. Built for durability and performance with transformer speed control options available for stepped speed regulation, this three‑phase AC model is ideal for factories, warehouses, kitchens, and HVAC exhaust systems.
Pre‑galvanised steel casing for durability and weather resistance
Backward‑curved centrifugal impeller for efficient airflow
External AC rotor motors with sealed bearings for long life
Bird guard and wind guard fitted as standard
Product Type: Roof‑Mounted Vertical Discharge Centrifugal Fan
Model: Clearflow CF400 / 4‑3AC (Three‑Phase AC)
Fan Diameter: 400 mm
Motor Type: Three‑phase AC external rotor motor
Voltage: 380–415V AC / 50Hz (typical industrial supply)
Casing Material: Pre‑galvanised sheet steel
Impeller: Backward‑curved aerofoil blades
Airflow: Strong vertical discharge projection
Mounting: Suitable for flat or pitched roofs up to approximately 30°
Operating Temp: Suitable for typical HVAC applications up to +60°C
Protection: Standard wind guard and bird guard fitted
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.
