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DuraVent 4" x 3" & 5" x 4" Tapered Reducer

Original price $221.42
Original price $221.42 - Original price $247.45
Original price $221.42
Current price $177.13
$177.13 - $197.96
Current price $177.13
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DuraVent 4" x 3" & 5" x 4" Tapered Reducer

Durable and reliable, the DuraVent 4" x 3" & 5" x 4" Tapered Reducer is designed to help your ventilation system transition between differently sized pipes. This reducer is made with heat-resistant galvanized steel for a secure fit and long-lasting life. With double-wall construction and superior joint connections, this reducer can safely redirect airflow for secure ventilation.

Use to reduce vent diameter. Creates a smooth transition for an undisruptive flow. Additional sizes available, but reductions are limited to a maximum of 2" reduction in diameter. Available in 316L Stainless Steel


  • Available Inner Diameter : "4"
  • Fuel Types Compatible With: Gas
  • UL Listed: Yes
  • Single Wall Construction

Typical Installation(Refer this if required):

Commercial Applications

Commercial projects may require custom parts and unique system designs. DuraVent offers complete project assistance:

  • Engineering Services: Personalized system design services offer comprehensive CAD submittal drawing and complete bills of materials.
  • Custom Parts: If your project requires innovative solutions, contact DuraVent for custom parts that meet your specific project needs.
  • FasNSeal W2: FasNSeal W2 is the ideal choice for commercial applications where there is a need for low clearances to combustibles.
  • Up to 16” Vent Diameters: Many commercial applications require large diameter systems due to the units size and output. Large diameters are available in single and double wall, featuring FasNSeal’s triple lipped directional gaskets and built-in locking band which provides a safe and convenient installation.

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