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The HOFFMAN 401488 is a water main vent valve designed to release air from a plumbing system. This valve measures 1/2 inch by 3/4 inch in NPT size. It is suitable for water supply applications, allowing for better fluid movement and preventing air locks in the line.
We pulled together the parts most installs need for this unit, plus a few add-ons worth a look. Check what you need — nothing here blocks checkout.
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