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Naturally buffered in the United States with limestone
The 2 ft x 4 ft rack is perfect for large-scale micro-green or commercial propagators looking to maximize their production
Soil Amendment or Mulch:
Always follow the current product label or the General Hydroponics feed chart that matches your nutrient program
Packaged 30 pieces per bag
AC Infinity Backdraft Damper Ducting Insert, Black Galvanized Steel, 4" SHIP_FR5 Naturally buffered in the UnitedAC INFINITY BACKDRAFT DAMPER DUCTING INSERT An anti draft duct insert designed for use with range hoods, bathroom fans and other home HVAC applications. Features outer rubber gaskets that create an airtight seal and grip between the damper and ducts. Mounts horizontally or vertically to prevent backflow and debris from entering ducting. Galvanized steel body with spring loaded aluminum damper blades that open with minimal airflow. Fit for 4 in. Duct
US$ 14.95
US$ 132.00
US$ 13.95
