Corrosion-resistant galvanised steel key. Allows easy access to drainage systems by lifting or replacing manhole covers. Quality welds with strong T-bar design. Fits 1/2 and 3/4″ square stop taps, and 1/2 and 3/4″ stop taps. Corrosion-resistant galvanised steel key. Allows easy access to drainage systems by lifting or replacing manhole covers. Quality welds with strong T-bar design. Fits 1/2 and 3/4″ square stop taps, and 1/2 and 3/4″ stop taps.