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AMERI-VENT 90 Degree Elbow: 90° Angle, 4 in Duct, 11 1/2 in Lg, Steel, 5 in Centerline Radius

The AMERI-VENT 90 Degree Elbow (SKU 3G-OTH-77689, MPN 4AL) is a 4-inch adjustable steel elbow with a 90° angle, 5-inch centerline radius, and 11 1/2-inch length. It features a galvanized finish, press-fit connection…

SKU 3G-OTH-77689

Brand
AMERI-VENT
Item
90 Degree Elbow: 90° Angle, 4 in Duct, 11 1/2 in Lg, Steel, 5 in Centerline Radius
Category
Elbows
Available to Order
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Technical specs
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Local availability & support

Delivery
Worldwide DHL shipping from Singapore; 7–14 business days door-to-door for most destinations.
Payment
Invoicing in USD. Bank transfer (SWIFT) and corporate PO accepted.

Technical Specifications

AMERI-VENT
Manufacturer Part Number
4AL
Type
Steel
Material
Steel
Lg
11 1/2 in
Duct
4 in
Finish
Galvanized
Inlet Dia
4 in
Product Type
Adjustable Elbow
Vent Material
Outer Galvanized Steel w/ Inner Aluminum Liner
Connection Type
Press Fit
Centerline Radius
5 in

Technical Documents

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

Product Description

The AMERI-VENT 90 Degree Elbow (SKU 3G-OTH-77689, MPN 4AL) is a 4-inch adjustable steel elbow with a 90° angle, 5-inch centerline radius, and 11 1/2-inch length. It features a galvanized finish, press-fit connection, and a construction of outer galvanized steel with an inner aluminum liner.

Frequently Asked Questions

What is the AMERI-VENT 4AL 90 degree elbow used for?

The AMERI-VENT 4AL 90 degree elbow is used to change vent direction by 90° in residential or light commercial exhaust systems. Its galvanized steel outer and aluminum inner liner resist corrosion, making it suitable for gas appliance venting where a press-fit connection is specified.

What are the specifications of the AMERI-VENT 4AL elbow?

The AMERI-VENT 4AL is a 90° adjustable elbow with a 4 in duct diameter, 5 in centerline radius, and 11 1/2 in length. It is made of steel with a galvanized finish, features a press-fit connection, and has an outer galvanized steel wall with an inner aluminum liner.

Where to buy the AMERI-VENT 4AL elbow worldwide?

3G Electric supplies the AMERI-VENT 4AL 90 degree elbow to customers worldwide. As a global industrial sourcing partner, we handle logistics, customs clearance, and delivery to your site. Contact us for a quote and lead time on this adjustable steel vent elbow.

How to install the AMERI-VENT 4AL press-fit elbow?

To install the AMERI-VENT 4AL press-fit elbow, ensure the duct ends are clean and free of burrs. Insert the male end into the female fitting until it seats fully. No additional fasteners are required for a press-fit connection, but verify local venting codes for proper support and clearance.

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 elbows. 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
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Round to Oval Duct Transition: 4 in Duct, 6 7/8 in Lg, Steel, 4 in Inlet Dia, 4 in Outlet Dia, 26 ga (MPN 40E)
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Round to Oval Duct Transition: 5 in Duct, 9 3/8 in Lg, Steel, 5 in Inlet Dia, 5 in Outlet Dia, 26 ga (MPN 50E)
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Gas Vent Pipe: 12 in Duct, 18 in Lg, Steel, Category I, Adj Joint, Galvanized Steel (MPN 12R18A)
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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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