Plumbright Solvent Weld Air Admittance Valve Grey 110mm AV110

Plumbright solvent weld air admittance valve enables venting for soil and ventilating stacks, the advantage of using this equipment is it removes the need for making holes through the roof or external walls. This valve incorporates a sealing diaphragm which under its own weight or slight spring pressure is normally held closed, thus sealing the foul air within the pipework. It is extremely durable and designed to provide secure solvent weld jointing.