Polypipe Soil 4" Air Admittance Valve - Grey

The Polypipe SPV110G is a 110mm air admittance valve (AAV) designed to prevent siphoning in soil and vent pipe systems. Made from durable PVCu with a solvent socket connection, it ensures a secure, leak-free installation. Suitable for both internal and external use, this valve allows air to enter the pipework when needed, maintaining correct pressure and improving system efficiency. Compliant with BS EN 12380 standards, the SPV110G is ideal for domestic and commercial plumbing applications, offering a compact and reliable solution for ventilating waste pipe systems.