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The DURAVENT 810003091 is a FasNSeal stainless steel vent pipe section designed for use in positive-pressure venting systems that require AL29-4C alloy construction. This 3-inch diameter by 6-inch length pipe section is rated for a maximum operating temperature of 480 degrees F and carries UL1738 listing, confirming its suitability for venting gas-fired appliances including condensing furnaces, boilers, and water heaters. The AL29-4C stainless steel alloy offers high resistance to the acidic condensate produced in high-efficiency appliance exhaust streams. Licensed HVAC technicians and plumbers install this component as part of a listed FasNSeal venting assembly.
This vent pipe section is used in residential and light commercial installations where a listed Category IV or positive-pressure vent system is required. It is suited for venting high-efficiency condensing gas appliances that produce low-temperature, corrosive flue gases. The 3-inch diameter fits common residential condensing furnace and boiler vent outlet sizes. This section can be used as a straight run extension or combined with other FasNSeal system components to complete a full venting assembly from appliance to termination.
Designed for use within the FasNSeal UL1738-listed positive-pressure vent system. Compatible with other 3-inch FasNSeal system components. Consult the FasNSeal installation guide and appliance manufacturer specifications to confirm system compatibility before installation.
Installation must be performed by a licensed HVAC technician or plumber in accordance with the appliance manufacturer instructions, the FasNSeal installation guide, and applicable local mechanical codes. Shut down and allow the appliance to cool completely before servicing or extending any vent run. All joints must be assembled per the listed system instructions to maintain the UL1738 listing and ensure a sealed, positive-pressure-rated connection. Do not mix FasNSeal components with non-listed or incompatible vent system parts.
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