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The Mitchell Metal Products 40311 is a Type B double wall vent pipe. It has a four-inch inner diameter (ID), a four-and-a-half-inch outer diameter (OD), and a total length of forty-eight inches. This vent pipe is specifically designed for venting gas appliances.
Reliable venting for gas appliances ensures safety and 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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