BS EN 14622:2005

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Devices to prevent pollution by backflow of potable water. Air gap with circular overflow (restricted). Family A, type F|Pipes, Marking, Flow control, Pipe fittings, Performance testing, Air, Dimensions, Designations, Potable water, Anti-siphonage systems, Circular shape, Water pollution, Verification, Overflows, Water supply, Fluid inlets

112 GBP