Fans with on-off valve on the inlet side and regulating valve on the outlet side admin_b2023-07-30T14:09:08+00:00 0 March 18, 2023 Sama More Information PRODUCT DESCRIPTION On/off shutter inlet side and with manual outlet adjustment. TECHNICAL DETAILS FEATURES This type of accessory is made, on request, for airflow regulation needs. Share Facebook Twitter LinkedIn Google + Email