Imperial Mfg Group Usa Inc GV1375 Galvanized Storm Collar 3 in

Product Description

The IMPERIAL MFG GROUP USA INC GV1375 is a 3-inch galvanized storm collar designed to seal the joint between a vent pipe and a roof penetration. It prevents water intrusion at the roofline by forming a tight, weather-resistant barrier around the flue or vent stack. Constructed from galvanized steel, it resists corrosion and handles the temperature cycles common in residential and light commercial venting applications. HVAC technicians and plumbers install this collar as part of a complete venting assembly during new construction or reroof work.

This storm collar is suited for use with 3-inch vent pipes passing through roof decks, including B-vent and single-wall metal vent applications. It is a standard component in gas appliance venting systems such as furnaces, water heaters, and boilers. The collar seats over the flashing cone and is typically sealed with high-temperature silicone or roofing sealant to complete the weatherproof detail at the roof plane.

Key Features

• Galvanized steel construction provides corrosion resistance for outdoor roof-line exposure
• 3-inch nominal pipe size fits standard residential and light commercial vent stacks
• Designed to seal around the flue at roof penetration points, blocking water entry
• Sold in a package quantity of 6 units, suitable for multi-unit or contractor stocking

Compatibility

Designed as an OEM-style replacement and standard fitment storm collar for 3-inch round vent pipe assemblies in residential and light commercial venting systems.

Installation Notes

Installation is typically performed by licensed HVAC technicians or plumbers as part of a venting rough-in or service call. Before installing, shut down and allow the appliance and flue to cool completely. Slide the collar over the vent pipe above the flashing, then apply a bead of compatible high-temperature sealant around the top edge to ensure a watertight seal. Follow local building codes and the appliance manufacturer venting instructions for proper collar placement and clearance requirements.