Fittings
Ventmann UK offers high-quality ventilation fittings designed to ensure efficient and reliable airflow in modern HVAC systems. Our range of fittings is crafted with durability and performance in mind, making them ideal for both residential and commercial applications. Each component is engineered to provide a secure and airtight connection, helping to maintain system efficiency and reduce energy loss.
Flat Spigot (90°) - Galvanised - 80mm - 250mm dia
Airflow Regulator for 18 mm width, length 625mm, 1000mm, 1250mm Linear Slot Diffusers for Accurate Ventilation Control
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Heavy-duty Adhesive Aluminium Foil Tape
Male Connector / Coupler 80mm - 300mm dia
Female Connector / Coupler 80mm - 710mm dia
Pressed Metal Ducting Reducer - Galvanised Steel - 160mm to 125mm
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A frameless ventilation valve has no visible rim: the body is plastered into the ceiling and the face finishes flush. Sizes, airflow rates, Part F duties and how to install one.
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Acoustic Box vs Thermo Box: Which Plenum Does Your Slot Diffuser Need?
Acoustic Box (GTG) or Thermo Box (VTBOX)? How Ventmann’s two plenum boxes differ — top entry vs side entry, noise reduction vs insulation — and which one your linear slot diffuser needs.