The 4TRADE AF110 Push Fit Air Admittance Valve Black is a high-quality plumbing solution designed to allow the flow of air into waste systems while preventing foul gases from exiting into the building. This easy-to-install valve is compliant with BS EN 12380 standards, ensuring your plumbing systems efficiency and safety. The products durable black design adds a smart aesthetic touch to its practical functionality. Perfect for both domestic and commercial applications, this valve exemplifies 4TRADEs commitment to reliable performance and quality.