The BASO H91DA-8 REVB is a heavy-duty 1/2" NPT manual reset gas valve engineered for industrial commercial gas applications requiring reliable safety shut-off

technicians can avoid the diagnostic headaches associated with generic aftermarket boards

allowing for precise fitment in pipe sizes from 1" to 8"

allowing contractors to perform a backflow preventer repair without removing the valve body from the line

Key Benefits: Direct OEM Compatibility: Engineered specifically for Lennox heating equipment

Reznor 43422 Ring 319825-402 The BASO H91DA-8 REVB isInstall the Reznor 43422 venturi inlet ring to maintain precise airflow dynamics within high capacity forced air heating systems. This genuine HVAC replacement part is specifically engineered as a venter inlet ring for the Reznor RPV125 thru 350 series units, ensuring compatible fitment and reliable performance. As a veteran technician, you know that a worn or improperly seated inlet ring can disrupt the air to gas mixture and decrease the static