Z-Flex Universal Appliance Adapter, 3" to 24" Diameter
Z-Vent appliance adapter 3" to 24"
Appliance adapters connect your boiler or tankless water heater to the proper Z-Flex / Z-Vent diameter. Most tankless water heaters and boilers need an appliance adapter. Double wall installations also require a single to double wall adapter that will attach to the appliance adapter.
• Vent material: AL29-4C stainless steel