The 110mm Black Extract Cowl is a vital finishing component for any soil stack system. Installed at the highest point of the vent pipe (typically above the roofline), its primary purpose is to allow sewer gases to escape and air to enter the system, preventing the “siphonage” that can pull water out of toilet traps and sinks. The wide “mushroom” top is specifically engineered to shield the open pipe from heavy rain and snow, ensuring the system remains dry and functional. Manufactured from high-impact, UV-stabilised uPVC, this cowl is built to withstand constant exposure to the weather without fading or becoming brittle. It features an internal grate or narrow aperture design that acts as a barrier against birds and squirrels, preventing them from nesting inside the pipe and causing costly blockages. With a simple push-fit design, it can be installed in seconds onto any standard 110mm soil pipe, providing a professional and aesthetic finish to external pipework. Essential Ventilation: Allows the drainage system to “breathe,” maintaining the correct air pressure required for smooth waste flow and preventing foul odours. Weather & Debris Protection: The hooded design prevents rainwater from entering the stack and protects against blockages caused by leaves or nesting animals. UV Stabilised uPVC: Built to endure the harshest outdoor conditions, resisting degradation from direct sunlight and temperature extremes. Simple Push-Fit Install: Designed for a secure, friction-fit connection onto the end of a standard 110mm (4-inch) soil pipe—no specialist tools or adhesives required. Sleek Aesthetic: The high-gloss black finish matches standard black soil systems, providing a tidy, professional look for modern and traditional properties.

