Z-Vent is a factory built, engineered AL29-4C special gas vent pipe, suitable for positive or negative pressure. Z-Vent is UL tested and listed to UL1738/S636. CAT II, III, IV venting approved.
Used as a fire stop and support on a vertical installation when penetrating a floor or ceiling.
Q: For $35. I expected Stainless steel not Galvanized. ??
Asked by Grampa D 11 years ago
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Verified Reply- SupplyHouse Staff
While the venting materials of a Category III appliance must be special AL29-4C stainless steel, it is unnecessary for the fire stop to be made of this specific material as well.
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