The Ubbink Air Excellent 2 × AE34C 125mm 90° Valve Adaptor is a purpose-designed ducting accessory that allows two AE34C semi-rigid ducts to connect neatly to a single 125mm ventilation valve while incorporating a compact 90-degree bend. It’s an ideal solution where space is limited and tidy, efficient routing is required.

Designed for full compatibility with the Air Excellent modular system, this adaptor delivers secure, airtight mechanical connections without the need for tape or sealant. Its efficient radial design helps maintain low system pressure loss, supporting reduced fan energy use and quieter system operation — exactly what you want from a properly balanced MVHR installation.

When installed using the correct AE34C seal and click rings, the adaptor provides a reliable, professional connection that’s quick to fit and built to last.

Installation Requirements

• 1 × AE34C seal ring (per duct connection).
• 1 × AE34C click ring (per duct connection).

Key Features & Benefits

• Connects two AE34C ducts to a single 125mm valve.
• Integrated 90° bend for compact, space-saving installations.
• Compatible with Air Excellent modular manifolds.
• Suitable for semi-rigid plastic ducts on a roll.
• Airtight mechanical connections without tape or sealant.
• Low system pressure loss thanks to efficient radial design.
• Airtightness class ATC1 up to ±1000 Pa.
• Helps minimise fan energy use and sound production.
• TÜV SÜD and ISEGA tested and certified.
• REACH compliant.

A tidy, well-thought-out adaptor that keeps airflow smooth and installs neat — because good ventilation has always been about getting the details right.