Imperial Mfg Group Usa Inc GV1378 Storm Collar 6 in

Product Description

The IMPERIAL MFG GROUP USA INC GV1378 is a 6-inch galvanized storm collar designed to seal the gap between a flue pipe and the roof penetration opening. It creates a weathertight barrier that prevents rain, snow, and debris from entering the building along the vent stack. This component is a standard part of single-wall and B-vent chimney flue installations in residential and light commercial construction. Roofing contractors, HVAC techs, and plumbers typically install this collar as part of venting system work involving roof penetrations.

The GV1378 is sized for 6-inch diameter flue or vent pipe and is sold in a package quantity of 6 units. It is commonly installed on water heater vents, furnace flues, wood stove chimneys, and other round flue applications that exit through a sloped or flat roof. The galvanized steel construction holds up to outdoor exposure and temperature cycling typical of rooftop venting environments.

Key Features

• Sized for 6-inch diameter flue or vent pipe
• Galvanized steel construction resists corrosion and outdoor weathering
• Seals the roof penetration gap to prevent water intrusion along the vent stack
• Sold in a package of 6 units
• Suitable for residential and light commercial venting applications

Compatibility

Designed as an OEM-style replacement or new-installation storm collar for 6-inch round flue and vent pipe systems, including single-wall metal pipe and standard B-vent chimney assemblies penetrating a roof deck.

Installation Notes

Storm collars are typically installed by HVAC technicians, plumbers, or roofing contractors as part of a complete venting system. Before installation, ensure the flue or vent pipe is properly supported and the roof penetration is complete. The collar should be slid down over the pipe and seated flush against the roof flashing, then sealed with high-temperature sealant to prevent water infiltration. Follow local building codes and manufacturer venting guidelines for proper flue clearances and installation requirements.