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McAlpine Anti Crossflow / Anti Rodent Barrier Valve ARB-1
ARB-1 is a 4 Inch/110mm Anti Back-Flow and Rodent Barrier Valve that is designed to prevent sewage or wastewater from flowing back into a building's plumbing system, which could lead to contamination and health hazards.The valve operates by allowing sewage or wastewater to flow out of the building's plumbing system, but preventing it from flowing back in.
It is also a rodent barrier which helps to prevent rodents and other pests from entering the building through the plumbing system.
Dimensions: 113 x 64 x 113mm
Manufacturers Code: ARB-1