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Bigamart
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$27.99
Home/DIY & Tools/Building Supplies/Heating & Cooling/Registers, Grilles & Vents
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Registers, Grilles & VentsVent Systems✓ In stock

Vent Systems Ø100 mm / 4" Inch Round Air Duct Connector Flange – Heavy Duty Galvanised Steel Air Vent Duct Coupler for Cooling, Heating Ventilation - Quality Fittings for HVAC System Ducting

★★★★★
$27.99

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About this item
  • FIT FOR 4" / 100MM DUCT – Diameter of 100mm / 3.94" Inch, for rigid or flexible pipe connection and secure the connection with hose clamps (NOT INCLUDED). Suitable for use in environments with varying temperature extremes, ensuring durability and reliability over time.
  • Connects round ducting for a continuous, secure flow of air in residential, commercial, and industrial ventilation systems, optimizing airflow while minimizing noise, turbulence, and pressure drops in HVAC applications.
  • Made from high-quality galvanized steel, this ventilation duct fitting is engineered to provide exceptional durability, superior resistance to rust and corrosion, and outstanding performance for long-term use in harsh ventilation environments.
  • Features a straight coupling design with a reinforced, leak-proof flange that securely connects round ventilation ducts, providing a reliable, airtight seal. Quick and simple installation ensures optimal airflow efficiency.
  • Perfect for home improvement - kitchen, laundry room, basement, garage and anywhere else, where consistent and reliable airflow control is essential for performance and comfort. Ideal for dryer vent hose, tumble dryer connection as well.
Product details
Brand
Vent Systems
Manufacturer
Vent Systems
Material
Galvanized Steel
Colour
Silver
Size
100 mm / 4 Inch
Weight
0.04 kg
Model number
4751037230101
EAN
4751037230101

Customer reviews

What customers say about Bigamart

10 Trustpilot reviews total, with 2 shown at a time.

Trustpilot
★★★★★
Excellent
4.5 average rating
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S
Sigalit
🇮🇱 · January 2026
★★★★★

I wrote to Bigamart's customer support and they accompanied the process of reshipping the item until it finally arrived. I felt a genuine effort to solve the problem till it was finally solved.

V
Verified buyer
🇦🇺 · November 2025
★★★★★

The package was here in Australia from England in a few days — so quick! Something was missing and they refunded it straight away. Pretty happy with these guys.

Showing 1–2 of 10 reviews

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