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The Z-FLEX 2SVSRTF04 Z-Vent 4" Termination Box with 4" Sleeve is made of stainless steel. Z-Vent is engineered AL29-4C special gas vent pipe, suitable for positive or negative pressure. It is UL tested and listed to UL1738/S636 and CAT II, III, IV venting approved.
The Z-FLEX 2SVSRTF04 Z-Vent termination box is suitable for positive or negative pressure and CAT II, III, IV venting approved.
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