4″x3″ Galvanized HVAC Duct Reducer Tapered Gray North 4X3-311P

SKU: 4X3-311P

Weight	2 lbs
Dimensions	8 × 8 × 8 in
Condition	New
Manufacturer Part Number	4X3-311P

$13.46

In stock — available to order.

Sold individually. Each quantity ordered is one unit. Kits are one complete kit; products sold by length use the stated length unit.

Same-item volume pricing

Quantity	Unit price	Saving
1–4	$13.46	0%
5–9	$12.79	5%
10+	$12.11	10%

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4"x3" Galvanized HVAC Duct Reducer Tapered Gray North 4X3-311P

Specifications & product details

4″ x 3″ Galvanized Tapered HVAC Duct Reducer – MFG# 4X3-311P

This 4″x3″ tapered duct reducer is designed to provide a smooth and efficient transition between 4-inch and 3-inch round HVAC ductwork. Manufactured from durable galvanized steel, it offers corrosion resistance and long-term reliability in residential and commercial ventilation systems.

The tapered design promotes improved airflow efficiency compared to straight reducers, reducing turbulence and static pressure loss within the duct system.

Key Features:

4″ to 3″ round reduction
Heavy-duty galvanized steel construction
Tapered body for smooth airflow transition
Crimped end for quick and secure installation
Ideal for HVAC supply, return, and exhaust duct systems

Applications:

Residential HVAC duct installations
Commercial ventilation systems
Exhaust venting transitions
Retrofit duct size conversions

Compatible with standard 4-inch and 3-inch round metal duct pipe. Can be secured using sheet metal screws and HVAC foil tape or clamps for an airtight connection.

Built for professional HVAC installers and contractors seeking reliable, code-compliant duct fittings.

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