Ventilation variable-section connector AWENTA KO100-20 short 55x110 mm Ø100 mm white

AWENTA KO100-20 short variable-section connector is designed for secure transition between a rectangular duct section of 55×110 mm and a round Ø100 mm ventilation duct. The component is intended for air distribution tasks and enables compact, space-saving connections in ventilation systems. Its white finish makes it suitable for visible installations where a neutral appearance is required, and its short profile is optimized for installations with limited depth.

Advantages

The connector provides a reliable mechanical junction between rectangular and circular ducts while maintaining airflow continuity and minimizing turbulence. Its compact, short design reduces the need for additional straight duct length and simplifies placement in tight spaces. Constructed by a recognized ventilation components manufacturer, the accessory is compatible with common Ø100 mm round ducts and standard 55×110 mm rectangular ductwork, supporting straightforward integration into existing systems.

Suitable for

• Residential ventilation installations requiring compact transitions
• Light-commercial HVAC systems with limited installation depth
• Retrofitting or modifying duct runs where rectangular-to-round conversion is needed
• Connections to inline fans, terminal devices, or flexible Ø100 mm ducts

Key specifications

• Rectangular inlet size: 55×110 mm
• Round outlet diameter: Ø100 mm
• Short variable-section design for limited-depth installations
• Color/finish: white
• Intended use: ventilation duct transition and air distribution

How to use

Install the rectangular side into the matching 55×110 mm duct opening and secure using appropriate clamps, screws, or duct tape as required by the installation standard. Connect a Ø100 mm round duct to the circular outlet and fasten with a suitable clamp or sealing method to ensure an airtight joint. Verify alignment and support the assembly to avoid strain on adjacent duct sections. Follow local building codes and HVAC best practices for sealing and fastening to maintain system performance.

Usage recommendations

For best performance, ensure mating duct edges are clean and free of deformation before fitting. Use corrosion-resistant clamps or duct tape appropriate for the application, and apply sealing compound or gasket material if airtightness is required. When installed in visible areas, white finish can be touched up with matching paint if necessary. For systems with higher airflow velocity or where noise is a concern, consider smoothing internal connections and providing adequate support to minimize vibration.