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PlumbersHQ 25mm Brass Swing Check Valve$7.57
Use the Swing check valve for tank systems to prevent backflow contamination. These swing check valves don't provide enough protection to be able to prevent backflow to mains water but they are perfect for tank systems that are linked with mains water. Install a swing check valve on a tank/mains system to prevent mains water filling up your water tanks illegally.,Use the Swing check valve for tank systems to prevent backflow contamination.
These swing check