4-way key fits most sillcock, stopcock, and valve sizes: 1/4″ (7.5mm), 9/32″ (8mm), 5/16″ (10mm), and 11/32″ (11mm). Multipurpose 4-Way Valve Spigot Key Set. Its durable steel construction ensures reliability when you need it most, while the corrosion-resistant design extends its usable life.

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