For sale is John Guest Female 1/2" BSP To 12mm Push Fit Water Adaptor JG. 1 x John Guest Female 1/2" BSP To 12mm Push Fit Water Adaptor JG. This adaptor will allow you to connect 12mm semi-rigid / push-fit pipe to a Female 1/2" BSP screw fitting, as is found on Shurflo on-demand pump inlets / outlets.
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