Duravent 105307 Double Wall Low Profile Increaser 5x7 in

Product Description

The DURAVENT 105307 is a double wall low profile increaser designed for venting applications that require a transition from a 5-inch diameter vent to a 7-inch diameter vent. Built from galvanized steel, this increaser provides a durable, corrosion-resistant connection point within a venting assembly. The low profile design keeps the transition compact, minimizing the space required at the junction. This component is typically installed by licensed HVAC technicians and sheet metal contractors working on residential or light commercial venting systems.

This increaser fits into double wall vent systems where a diameter step-up is needed between appliance collars and larger vent pipe runs. Common applications include gas appliance venting, B-vent assemblies, and similar systems where vent diameter must increase to meet clearance or draft requirements. The galvanized steel construction makes it suitable for standard indoor venting environments where moisture resistance and mechanical durability are priorities.

Key Features

• Transitions from 5-inch inner diameter to 7-inch inner diameter in a single low profile fitting
• Double wall construction supports compatibility with double wall vent system assemblies
• Galvanized steel build provides corrosion resistance for long-term service
• Low profile increaser design reduces axial length at the transition point
• Suitable for residential and light commercial venting installations

Compatibility

Designed as an OEM-style replacement or new-installation component for double wall vent systems requiring a 5-inch to 7-inch diameter increase.

Installation Notes

Installation should be performed by a licensed HVAC technician or qualified contractor in accordance with the appliance manufacturer instructions and applicable local codes, including the International Fuel Gas Code (IFGC). Before installing or servicing any vent fitting, shut down and allow the connected appliance to cool completely. Ensure all vent joints are properly secured and sealed per the vent system manufacturer requirements. Do not mix components from incompatible vent system manufacturers without verifying listed compatibility.