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The Hoffman 401413 is designed for efficient steam venting in residential or small one-pipe or two-pipe heating systems. This air valve operates without vacuum and features a float-type thermostatic vent.
This valve is ideal for use in steam heating systems, helping eliminate air pockets to improve overall efficiency.
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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