bociloy 4 Inch Duct Connector Flange, Metal Straight Pipe Flange Square to Round Interface for Ventilation, Cooling, Heating, Air Conditioning Systems with Screws








Key features
- •Package including: You will receive 1pc 4 Inch Duct connector flange with screws. Interface Outer Diameter: 95mm/3.7inch; Diagonal Mounting Hole Distance: 126mm/5inch; Distance Between Adjacent Mounting Holes: 80mm/3.1inch; Base Size: 134x134mm/5.27x5.27inch(L*W), Total Height: 60mm/2.36inch.
- •Heavy Duty Metal Construction: This duct connector flange is made from high-quality metal, ensuring long-lasting durability and resistance to corrosion. It is designed to withstand various environmental conditions, making it ideal for ventilation and HVAC systems.
- •Square to Round Interface: The flange features a square to round interface, allowing for versatile connections between different duct shapes. This design enhances compatibility with various ventilation systems, ensuring a secure fit.
- •Smooth Airflow Design: The flange is engineered to promote smooth airflow, reducing turbulence and improving the efficiency of your ventilation system. This feature helps maintain optimal performance in heating and cooling applications.
- •Versatile Applications: Suitable for a wide range of applications, this flange is perfect for ventilation, cooling, heating, and air conditioning systems. Its versatility makes it an essential component for both residential and commercial setups.
bociloy 4 Inch Duct Connector Flange, Metal Straight Pipe Flange Square to Round Interface for Ventilation, Cooling, Heating, Air Conditioning Systems with Screws
List Price: $18.60$16.74DEALYou Save: $1.86 (10%)
Free shippingFree Returns – 30 daysFree Order CancellationSecure Payment2–3 Days DeliveryGet It June 24, 2026In Stock (30)No marketing spamNo account requiredFulfilment by FedEx / Amazon / UPS / ShipwirePayPal / Card Buyer Protection







