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SPEEDI-BOOT 7 in Dia. 90° Vent Boot Hanger SBS-4147 NB - Vent Boots
SPEEDI-BOOTVent Boots

SPEEDI-BOOT 7 in Dia. 90° Vent Boot Hanger SBS-4147 NB

The SPEEDI-BOOT Vent Boot Hanger: 90° Boot Boot is a steel vent boot designed for HVAC ductwork. This product features a 7-inch diameter, a 7-inch height by 7-inch width collar size, and a 4-inch compatible register…

SKU 3G-OTH-77755

Also listed as: SBS4147NB · SBS 4147 NB · SBS-4147-NB

Brand
SPEEDI-BOOT
Item
7 in Dia. 90° Vent Boot Hanger SBS-4147 NB
Part Number
SBS-4147 NB
Category
Vent Boots
Available to Order
Also known as:SBS-4147 NBSPEEDI-BOOT
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Technical Specifications

SPEEDI-BOOT
Manufacturer Part Number
SBS-4147 NB
Type
7 in Dia. 7 in H x 7 in W Collar Size
Material
Steel
Cap/Collar Material
Steel
Compatible Register Ht
4 in

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SPEEDI-BOOT Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The SPEEDI-BOOT Vent Boot Hanger: 90° Boot Boot is a steel vent boot designed for HVAC ductwork. This product features a 7-inch diameter, a 7-inch height by 7-inch width collar size, and a 4-inch compatible register height. It is constructed with steel material for both the boot and cap/collar, identified by manufacturer part number SBS-4147 NB.

Frequently Asked Questions

What is the SPEEDI-BOOT Vent Boot Hanger used for?

The SPEEDI-BOOT Vent Boot Hanger is used in HVAC ductwork to connect round ducting to a floor or wall register. It provides a secure 90-degree transition and supports the boot assembly, ensuring proper airflow distribution in residential and light commercial heating and cooling systems.

What are the specifications of the SPEEDI-BOOT SBS-4147 NB vent boot?

The SPEEDI-BOOT SBS-4147 NB vent boot has a 7-inch diameter, a 7-inch height by 7-inch width collar size, and a 4-inch compatible register height. It is made entirely of steel, including the cap and collar. This 90-degree boot is designed for HVAC ductwork applications.

Where to buy SPEEDI-BOOT vent boots worldwide?

SPEEDI-BOOT vent boots are available to order through 3G Electric, a global industrial equipment distributor. We handle full logistics, customs clearance, and delivery to worldwide destinations. Contact 3G Electric for pricing and lead time on the SBS-4147 NB model.

How to install a SPEEDI-BOOT vent boot hanger?

To install a SPEEDI-BOOT vent boot hanger, first secure the boot to the subfloor using the integral hanger tabs. Connect the round duct to the 7-inch diameter collar and seal with foil tape or mastic. Ensure the 4-inch register opening aligns with the finished floor for a flush fit.

Used in

Common applications for SPEEDI-BOOT
Residential HVAC — SPEEDI-BOOT 90° boot (e.g., SBS-4127 NB) for connecting 7 in round duct to a 4 in high floor register.
Commercial ductwork — SPEEDI-BOOT end boot (e.g., SBS-8148 EB) for 8 in round duct to 8 in high wall register in office buildings.
Light industrial ventilation — SPEEDI-BOOT straight boot (e.g., SBS-6127 SB) for 7 in round duct to 7 in x 7 in collar in factory spaces.
Retrofit projects — SPEEDI-BOOT 6 in boot (e.g., SBS-4126 EB) for upgrading duct transitions to 4 in high registers in older buildings.
HVAC maintenance — SPEEDI-BOOT 8 in boot (e.g., SBS-6148 EB) for replacing damaged boots in 6 in high register applications.
Ductwork fabrication — SPEEDI-BOOT vent boots in various sizes for assembling round-to-rectangular transitions in custom air distribution systems.
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SPEEDI-BOOT Products

3G Electric supplies SPEEDI-BOOT vent boots. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

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