Will fit multiple pipe sizes;Has a dual fit rubber seal outlet for 3/75mm or 4/110mm soil pipe and a 2 / 50mm universal outlet;Designed to allow air into a soil stack but not allow foul air out;Capacity is 8.9 l/sec;Part number is VP50-100

• McAlpine Air Admittance Valve for 2, 3, 4 Pipe

McAlpine Air Admittance Valve for 2, 3, 4 PipeMcAlpine