4-Way Utility Key Meter Box Key for UK Gas Meters - 8mm Tri/8mm Square Holes -
4-in-1 Tool for UK8 mm triangular (EN81 elevators + gas meters), 8 x 8mm square (electrical cabinets/smart water meters), gas meter key fits 4.5mm radiator valves & 6mm stopcocks, 1 tool, 4 uses!.