Greenwood 4000S Trickle Vent

The Greenwood 4000S Trickle Vent is a discreet, durable ventilation solution designed to provide a continuous supply of fresh air into a property. Manufactured from high-quality PVCu, it is designed for installation into window frames to provide effective background ventilation.

The vent helps improve indoor air circulation, reduce condensation and minimise the build-up of moisture, helping to prevent damp and mould.

The Greenwood 4000S features a slimline design and is supplied as a complete set, including an internal ventilator and external weather canopy. It is available with front, bottom or pull-cord operation, allowing users to control airflow to suit their requirements.

Product Features

• Provides up to 4,000mm² free area ventilation (depending on configuration).

• Durable PVCu construction.

• Designed for continuous background ventilation.

• Helps reduce condensation, damp and mould.

• Supplied with internal vent and external canopy.

• Available with front, bottom or pull-cord operation.

• Suitable for uPVC, timber and aluminium window frames.

• Available in a range of colours and finishes.

• Optional installation sleeve available.

Dimensions and Sizes

Slot configurations:

• Internal slot: 163mm – 15.5mm gap – 163mm.

• External slot: 157mm – 10mm gap – 175mm.