Skip to content
Free Local Pickup Ship to Your Hometown Store
Pro & Contractor Accounts Apply for Net Terms
100,000+ Products Trusted American Hardware Brands

Imperial 7 in. D X 5 in. D Galvanized Steel Furnace Pipe Reducer

Introducing the Imperial 7 in. D X 5 in. D Galvanized Steel Furnace Pipe Reducer—a precise, durable transition piece designed to streamline your furnace exhaust ductwork. Built for…

Imperial MPN GV1750 In Stock & Ready to Ship
Local Price Check i Local stores may price this as low as $12.99. Our online price is $14.99.
$14.99
Includes free shipping on orders over $75 · $8.99 standard below
Delivery in as little as 1–4 business days Order within for same-day shipping
Shop Local · Support Independent

Every order helps keep your local hardware store on the corner.

Why we built NHG
You might find it for less locally. Independent retailers often offer competitive pricing — some products are even cheaper in-store than online.
Real expert advice — not search results. Independent hardware staff know their inventory and the local conditions you're working in.
Keep the neighborhood working. Every dollar spent at an independent retailer returns roughly 3x more to your local economy than at a national chain.

About Product Overview

Introducing the Imperial 7 in. D X 5 in. D Galvanized Steel Furnace Pipe Reducer—a precise, durable transition piece designed to streamline your furnace exhaust ductwork. Built for reliability, this reducer helps you adapt from a 7" opening down to 5" with a seamless, code-friendly fit.

Crafted from 26-gauge galvanized steel, the reducer delivers solid resistance to corrosion and wear in furnace environments, while maintaining a smooth interior surface to support steady airflow. The 7" and 5" ends provide a straightforward, compact solution for Type A vent systems, helping you preserve draft efficiency and minimize turbulence along the duct run.

Key benefits

  • Exact size reduction: 7" on one end to 5" on the other ensures a snug, compatible connection with Type A vent components.
  • Durable galvanized steel: 26-gauge construction offers long-lasting performance in damp or high-heat spaces common to furnace installations.
  • Crimp-on small end: Enables quick, secure connections that resist leaks when paired with appropriate clamps and sealant.
  • Trusted brand: Imperial is known for practical, dependable ducting parts designed to withstand everyday use.
  • Protective packaging: Boxed packaging safeguards the reducer during shipment and storage, keeping it ready for install straight out of the box.

Technical specifications

  • End 1 diameter: 7 in
  • End 2 diameter: 5 in
  • End type: Crimp on (Small End)
  • Gauge: 26
  • Material: Galvanized steel
  • Vent Type: Type A
  • Color: Silver
  • Packaging: Boxed
  • Product type: Furnace Pipe Reducer

Ideal use cases

Use this reducer when upgrading or repairing residential furnace exhaust runs, or when configuring a Type A vent system that requires a transition from a 7" duct to a 5" duct. It’s well-suited for basements, utility rooms, or mechanical closets where durable, straightforward duct transitions are needed. Perfect for DIY projects, contractor setups, or any installation that demands a reliable, easy-to-install reducer.

Installation and care tips

  • Dry-fit the reducer first to confirm alignment with your 7" and 5" ducts before final assembly.
  • Secure the crimped end with appropriate metal clamps and seal joints with compatible duct sealant or foil tape to maintain a tight, leak-free connection.
  • Avoid sharp bends near the reducer to preserve smooth airflow and reduce pressure losses.

The Details Specifications

Brand Imperial
SKU 48645
UPC 063467822950
Unit 0
Case Pack Quantity 12 per case
Retail Unit Quantity 1
Unit of Measure 0 0
Dimensions (L × W × H) 7 × 7 × 8
Weight 2 lbs
Cubic Feet 0.11883 ft³
Country of Origin CANADA
Safety Data Sheet (SDS) Manufacturer documentation · opens in new tab

Compare products

{"one"=>"Select 2 or 3 items to compare", "other"=>"{{ count }} of 3 items selected"}

Select first item to compare

Select second item to compare

Select third item to compare

Compare