4'' DuraVent B Vent Oval Firestop Spacer - 4GWFS

Item Code: 5SP-4GWFS

Availability: Out of Stock for Season.



$0.50 (5.00%)


Product Details

Use to center oval vent in 16" on center stud space. Serves as a firestop at the ceiling level. An Oval Firestop Spacer is required in multi-story installations.

See all 4" Oval B Vent Components

Additional Information

  • Size: 4"
  • Clearances: 1" Clearance to combustibles
  • Listings: UL Listed to UL441 and UL 1777 (MH6357ULC Listed to ULCS605 (CMH1276 & CMH1407)
  • Construction: Galvalume
Additional Information

Simpson DuraVent Type B Gas Vent is designed to meet the rugged demands of the job site. Type B Gas Vent is engineered to heat up rapidly. It remains hot during the operation of the appliance with minimal condensation in the appliance and vent system. The inner wall of Type B Gas Vent is recessed to eliminate damage in handling.

Type B Gas Vents are not suitable for use with wood-burning or coal applications, industrial ovens, exhaust ranges and hoods, grease or pollution ducting, or as free-standing exhaust vents for high-temperature applications. The applications listed typically use Type B Gas Vent systems, but not always: furnaces, water heaters, boilers, room heaters, decorative gas appliances, and unit heaters.

  Installation Instructions

Brand DuraVent, DuraVent Type B, Simpson
Model 4GWFS
Made In USA
Shipping Weight (lbs) 1.0000
Actual Weight (lbs) 1
International Shipping Yes
Product Type Firestops, In the Room
Diameter 4 Inch Oval
Wall Construction Double Wall
Material Galvanized Steel


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