The Timloc External Cowl – Brown is a durable, weather-resistant vent cowl designed to provide efficient airflow while protecting against rain ingress, draughts, birds, and debris. Manufactured from robust plastic in a brown finish, it blends seamlessly with brickwork and external walls. Available in three sizes, this external cowl is suitable for a wide range of domestic and commercial ventilation applications.. Key Features & Benefits. Weather Protection: Designed to reduce rain penetration and draughts while maintaining airflow.. Durable Construction: Made from high-quality plastic with a brown finish for long-lasting performance.. Discreet Design: Blends into external brickwork and wall finishes.. Multi-Size Options: Available in 255 × 95mm, 255 × 160mm, and 255 × 230mm.. Versatile Use: Suitable for domestic and commercial ventilation systems.. Product & Technical Details. Type: External Vent Cowl. Material: Plastic. Colour: Brown. Sizes: 255 × 95mm, 255 × 160mm, 255 × 230mm. Application: External walls for ventilation outlets. Suitable Applications. External wall ventilation outlets. Protection against rain, birds, and debris. Domestic housing, extensions, and refurbishments. Commercial and light industrial projects. Instructions for Use. Select the correct size cowl for the vent opening.. Prepare and align the cowl over the external aperture.. Fix securely to the wall using suitable screws or fixings.. Check airflow and ensure cowl is seated flush to prevent gaps.. Limitations & Precautions. Not suitable for use in high-pressure ventilation systems.. Ensure installation is correctly sealed to prevent air leakage.. Clean periodically to maintain airflow and performance.. The Timloc External Cowl – Brown (ABC93BR) provides a practical and discreet solution for protecting external wall vents, combining reliable airflow with long-term protection against weather, birds, and debris.