Ring A for 5000/6000/7000 Series Fan

Ring A for 4000/5000/6000/7000 Series Fan

The Ring A flow restriction plate is a critical component for achieving precise airflow measurements with Retrotec fans. Designed for use with Retrotec’s 4000, 5000, 6000, and 7000 Series blower door fans.

Key Features:

• Optimizes low-flow measurement by restricting the fan opening for greater precision.
• Designed for use with Retrotec 4000, 5000, 6000, and 7000 Series blower door fans.
• Easily installs and removes as part of Retrotec’s modular flow ring system.