Model # 3EIX4H

Internet # 202287840

Store SKU # 1000062796

3 in. x 4 in. B Vent Increaser

$10.99 /each

Frequently Bought Together

Product Overview

Manufactured by American Metal Products, a pioneer in the development and simplification of effective venting products since 1951. AmeriVent components are crafted for today's building and appliance requirements. We have taken the guesswork out of installation. This is the preferred, most efficient, economical, and easily installed chimney system in the industry.

  • Galvanized steel construction
  • For use in an HVAC system
  • Venting for gas fired appliances, water heaters, furnaces, stoves, etc.
  • 1-year manufacturer warranty
  • Note: product may vary by store



Product Depth (in.) 
Product Height (in.) 
Product Width (in.) 
3.5 in 


Gas Vent Pipe and Fittings Accessory Type 
Other Accessory 
Product Weight (lb.) 
0.75 lb 

Warranty / Certifications

Manufacturer Warranty 
One Year 

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Customer Questions & Answers

3 in. x 4 in. B Vent Increaser
3 in. x 4 in. B Vent Increaser

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Can this product be used to safely attach/transition a 3-inch pellet stove pipe outlet to 4-inch stove pipe?

This question is from 3 in. x 4 in. B Vent Increaser
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December 29, 2014
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