Ruck 4" Back Draught Damper for Ducting Micro Nutrients At up to 6 chained

At up to 6 chained units

Same great features and processing power of the Original trimmer with a few extras to make the trimming process more enjoyable

The kit comes equipped with durable air tubing and a check valve that prevents backflow

3-outlet power strip: Lands a fan

Ruck 4" Back Draught Damper for Ducting Micro Nutrients At up to 6 chainedBack Draught Shutter for 4" Duct Systems The Ruck 4" Back Draught Damper is an essential component for maintaining efficient airflow in ventilation systems. Built with a durable galvanized sheet steel housing, it prevents reverse airflow by automatically sealing off when the fan is off. The spring loaded aluminum flaps respond to active airflow and remain closed when idle, assisted by a secure rubber seal. This back draught shutter is suitable for