Ruck 14" Back Draught Damper for Ducting Butane These high quality materials deliver

These high quality materials deliver an odor locking power unrivaled by any other duflle bag on the market

Proven Scientific Formula: Part of the original 3-part system trusted by scientists and professional growers for over 40 years

Carefully processed and sifted to make it easy to work with

Pre-Harvest Flush: Ensure a pure

Ruck 14" Back Draught Damper for Ducting Butane These high quality materials deliverBack Draught Shutter for 14" Duct Systems The Ruck 14" 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