This is a 3″ stainless steel category II/III vertical ventilation kit for indoor gas tankless water heaters. It is single walled with gasketed connections for easy installation. It comes with a rain cap, storm collar, adjustable roof flashing, back flow preventer and universal appliance adapter. You will need to purchase additional Z-Vent straight pipe, condensation drains and elbows if necessary. UL approved.Limited 15 year warranty.
Check local and state building codes prior to installation.






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