3'' DuraVent B Vent Firestop Spacer - 3GVFS

Item Code: 5SP-3GVFS

Availability: In Stock, Only 4 left, Ships in 1 to 2 business days.



$5.62 (57.70%)




Product Details

Use at every ceiling level where square firestop support is not used.

See all 3" Type Round B Gas Vent Components.

Additional Information

  • Dimensions: 5 3/4'' x 7 3/4'' with a 3 3/4'' dia. opening
  • Construction materials: Galvalume
  • 1" Clearance to combustibles in single and multi-family dwellings
  • UL Listed to UL 441 and UL 1777 (MH6357). ULC Listed to ULC S605 (CMH1276 & CMH1407)
Additional Information

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

Brands DuraVent, DuraVent Type B, Simpson
Model 3GVFS
Made In USA
Shipping Weight (lbs) 0.3500
Actual Weight (lbs) 0.35
International Shipping Yes
Product Type Attic Area/Second Floor, Firestops, In the Room
Diameter 3 Inch
Wall Construction Double Wall
Material Galvanized Steel


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