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Ubbink OFT-4 Flat Roof Vent Terminal (Twin Walled) for EPDM - 166mm

SKU: 147040

£74.58 Incl. VAT
£62.15 Ex. VAT

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Estimated Delivery: 3-5 working days. Please note, if you live in Scotland, we will need to quote you for delivery costs. Please contact us if this is the case.


The Ubbink OFT-4 Flat Roof Vents are specifically designed to provide efficient ventilation with a special low air resistance cowl. Suitable for extracting domestic single fans, high-output cooker hood extraction fans, and heat recovery ventilation systems, these vents ensure optimal performance with a pressure/airflow resistance of less than 1.3 Pascal at 225m³/h.

The pipework above the roofline is twin-walled and includes an integral condensation drain, making it a reliable choice for maintaining proper ventilation. With their advanced design and functionality, the OFT-4 vents are ideal for any flat roof ventilation needs.

Why Choose the Ubbink OFT-4 Flat Roof Vent Terminal (Twin Walled) for EPDM - 166mm?

  • Twin walled
  • Compatible with EPDM roofing materials
  • Integral condensation drain
  • Large free vent area
  • Low Pa resistance
  • Strong & durable
  • Easy to install

Product Specifications:

Diameter: 166mm

Height Above Roof: 540mm

Flange Diameter: 490mm

Depth Below Roof: 510mm

Free Vent Area: 20,000mm²

Pa Resistance: <1.0

Deliveries are made on the basis the customer can accept the goods, or willingness to off load the goods, or having means of mechanical offload, this also applies to heavier items such as pallets etc. All deliveries are made ‘kerbside’ and often it can be at the discretion of the driver. A large majority of deliveries would be made on a large rigid tail-lift vehicle and off loaded via a pallet truck and only on to flat surfaces such as tarmac, concrete and pavers. If you do have restricted access, please contact us prior to placing your order. We will always try to accommodate your needs. If a delivery fails due to access, we reserve the right to make a re-delivery charge. All delivery charges are calculated when checking out. The delivery charges included are for the Mainland UK only and do not apply to the Scottish Highlands, or Isles off the Mainland. Additional charges may apply for deliveries that aren’t classed within the Mainland (this is classed by ourselves, suppliers and couriers) Please contact us on 01752 466151 or Due to the nature of our business model, this can mean your order will be sent via multiple deliveries. Whilst we will make every effort to deliver your goods within the stated/requested time frame, we cannot guarantee availability from the manufacturer or the manufacturer's delivery schedules, so we would recommend the end user not to start/schedule any work until the goods arrive. Due to logistics of various couriers and suppliers we are unable to give times of deliveries. However, please call or email us on the day of the delivery and we will try to get an approximate time. Deliveries can take place from as earlier as 07:30 right up to 18:00 depending on the courier/haulier and taking into account local traffic etc.
You have 14 days from receiving your item(s) to return them should you wish to do so. Please contact us should you wish to arrange a refund/return. Any product marked cut to size, bespoke or made to order are non returnable and excluded from our refund policy.

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