Weil-McLain 3 inch Z-Vent CGS/CGI Starter. 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.
Features
Features
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
Flashing for use in flat roof or chimney application