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AMERI-VENTAdapters

AMERI-VENT Round to Oval Duct Transition: 4 in Duct, 6 7/8 in Lg, Steel, 4 in Inlet Dia

The AMERI-VENT Round to Oval Duct Transition is a universal adapter for transitioning from a 4-inch round duct to a 4-inch oval duct. It is constructed from steel with a galvanized finish and features an outer…

SKU 3G-OTH-77154

Brand
AMERI-VENT
Item
Round to Oval Duct Transition: 4 in Duct, 6 7/8 in Lg, Steel, 4 in Inlet Dia
Category
Adapters
Available to Order
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Worldwide Shipping
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Technical specs
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Local availability & support — the Philippines

Delivery
5–8 business days door-to-door; Bureau of Customs clearance typically 2–4 business days.
Payment
Invoicing in PHP or USD. Bank transfer and corporate PO accepted.
Ships to
Manila, Quezon City, Cebu, Davao, Batangas

Technical Specifications

AMERI-VENT
Manufacturer Part Number
40E
Type
Steel, 26 ga
Material
Steel
Lg
6 7/8 in
Finish
Galvanized
Inlet Dia
4 in
Outlet Dia
4 in
Product Type
Universal Adapter
Vent Material
Outer Galvanized Steel w/ Inner Aluminum Liner
Connection Type
Interlocking Bracket

Technical Documents

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AMERI-VENT Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The AMERI-VENT Round to Oval Duct Transition is a universal adapter for transitioning from a 4-inch round duct to a 4-inch oval duct. It is constructed from steel with a galvanized finish and features an outer galvanized steel vent material with an inner aluminum liner. The adapter measures 6 7/8 inches in length, uses a 26-gauge thickness, and connects via an interlocking bracket.

Supplied to the Philippines — compatible with 60 Hz installations. DHL Express delivery to Manila, Quezon City, Cebu, customs and duties handled door-to-door.

Frequently Asked Questions

What is the AMERI-VENT Round to Oval Duct Transition used for?

The AMERI-VENT Round to Oval Duct Transition is a universal adapter that connects a 4-inch round duct to a 4-inch oval duct. It is used in HVAC venting systems to change duct shape while maintaining airflow, commonly in residential or light commercial exhaust applications.

What are the specifications of the AMERI-VENT Round to Oval Duct Transition?

This AMERI-VENT adapter has a 4-inch inlet and outlet diameter, 6 7/8-inch length, and is made of 26-gauge steel with a galvanized finish. The vent material is outer galvanized steel with an inner aluminum liner, and it connects via an interlocking bracket.

Where to buy the AMERI-VENT Round to Oval Duct Transition worldwide?

3G Electric supplies the AMERI-VENT Round to Oval Duct Transition to customers worldwide. We handle full logistics, customs clearance, and delivery to your site. Contact us for pricing and lead time on this universal adapter.

How to install the AMERI-VENT Round to Oval Duct Transition?

Install the AMERI-VENT adapter by securing the round end to the existing round duct using sheet metal screws or a compatible coupling. Attach the oval end to the oval duct with the interlocking bracket. Ensure all joints are sealed with approved duct sealant for airtight performance.

Used in

Common applications for AMERI-VENT
Commercial boiler venting — AMERI-VENT gas vent pipes and adapters for Category I exhaust systems
Industrial furnace exhaust — AMERI-VENT flex connectors in 316 stainless steel for high-temperature all-fuel venting
Water heater venting — AMERI-VENT rain caps and tees for rooftop termination and branch connections
Heating system retrofits — AMERI-VENT adjustable joint pipes for field-length customization in existing flues
Pitched roof venting — AMERI-VENT rectangular-base boots for weatherproof pipe penetration on sloped roofs

AMERI-VENT Products

3G Electric supplies AMERI-VENT adapters. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

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Compatible alternatives & equivalents

Cross-referenced by specification & description
Vent Adapter: 4 in Duct, 6 in Lg, Steel, Category I, Outer Galvanized Steel w/ Inner Aluminum Liner (MPN 4EUA-M)
AMERI-VENT
Vent Adapter: 4 in Duct, 6 in Lg, Steel, Category I, Outer Galvanized Steel w/ Inner Aluminum Liner (MPN 4EUA-M)
Vent Adapter: 5 in Duct, 6 in Lg, Steel, Category I, Outer Galvanized Steel w/ Inner Aluminum Liner (MPN 5EUA-M)
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Vent Adapter: 5 in Duct, 6 in Lg, Steel, Category I, Outer Galvanized Steel w/ Inner Aluminum Liner (MPN 5EUA-M)
Vent Adapter: 6 in Duct, 6 in Lg, Steel, Category I, Outer Galvanized Steel w/ Inner Aluminum Liner (MPN 6EUA-F)
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Vent Adapter: 6 in Duct, 6 in Lg, Steel, Category I, Outer Galvanized Steel w/ Inner Aluminum Liner (MPN 6EUA-F)
AMERI-VENT
AMERI-VENT
Draft Hood Connector: 4 in Duct, 6 in Lg, Aluminum Liner/Steel, 4 in Inlet Dia, 4 1/2 in Outlet Dia (MPN 4EDC)

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