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The IPEX ipex-397206 is a concentric vent termination roof flashing designed for use with PVC venting systems in residential and light commercial heating applications. The stretch-fit design accommodates both 3-inch and 4-inch concentric vent configurations, providing a weathertight seal at the roof penetration point. Part of the System 1738 engineered PVC venting platform, this flashing is certified to the UL 1738 venting standard, which governs venting systems for Category II, III, and IV appliances. Licensed HVAC technicians and plumbers install this component as the final termination point for concentric vent runs exiting through the roof deck.
This roof flashing is intended for concentric vent termination applications where the vent pipe exits vertically through the roof. It is designed for use within the System 1738 certified PVC venting system, which includes compatible pipe, fittings, and cement. The stretch-fit construction allows it to fit over 3-inch and 4-inch concentric vent pipes, making it suitable for a range of high-efficiency gas appliance installations that require Category IV venting.
Designed for use with the IPEX System 1738 certified PVC venting system for Category II, III, and IV gas appliances requiring concentric vent termination through the roof.
Installation should be performed by a licensed HVAC technician or plumber in accordance with the appliance manufacturer instructions, local building codes, and the IFGC. Power down and lock out the appliance before beginning any venting work. Ensure the roof deck opening is properly sized and that the flashing is seated and sealed per the System 1738 installation guidelines. Do not substitute non-certified pipe, fittings, or cement within a UL 1738 certified venting system.
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