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Bushing 125 mm
The 125 mm bushing is the most widely used wall flange for ventilation systems with 125 mm ducts and fans. Ideal as a wall pass-through for grow rooms, workshops and homes. The metal flange hides the drill hole and provides a solid connection for Alu-Dec or Sono-Connect ducting. Combine with a hose clamp for an airtight seal. Order at plantandflower.be.
Wall bushing 125 mm – the standard flange for ventilation
The 125 mm bushing is our best-selling size. The 125 mm diameter is the industry standard for grow ventilation and connects directly to popular fans like the 125 mm inline fan and matching ducting.
A clean wall or ceiling pass-through
Fit the bushing where your duct exits the room. The wide flange covers the hole neatly on the inside while the tube forms a smooth connection on the other side. Always secure the duct with a 60–135 mm hose clamp for a fully airtight joint.
Why 125 mm is the most popular size
Most home growers and hobbyists run 125 mm ventilation. It strikes the ideal balance between adequate airflow and compact dimensions. Filters, fans and ducts are most widely available in this size. Running a smaller system? See the 100 mm bushing. Going bigger? Choose the 160 mm bushing.
Order the 125 mm bushing at plantandflower.be – fast delivery across Belgium.
Does a 127 mm flexible duct fit onto a 125 mm bushing?
Yes. Flexible aluminium ducts like the Alu-Dec 127 mm slide over a 125 mm bushing with a snug fit. The slight size difference actually helps create a tight seal. Secure it with a hose clamp to make the connection completely airtight.
