How large is the hex drive part of the plug? (Atwood 91857 Water Heater Drain Plug - 1/2'' NPT - 2 Pack)

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Atwood 91857 Water Heater Drain Plug - 1/2'' NPT - 2 Pack Questions & Answers

Atwood 91857 Water Heater Drain Plug - 1/2'' NPT - 2 Pack

The Atwood Water Heater Drain Plug is designed for Atwood water heaters.

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Atwood 91857 Water Heater Drain Plug - 1/2" NPT - 2 Pack

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