Back Draft Damper - 4 Inch instore-only making it a practical base

making it a practical base for growers who want one coco-focused foundation that carries both growth and bloom

The internal impeller is part of the same mag drive assembly

clean-running liquid designed for growers who want a straightforward PK option they can rely on during mid- to late-flowering

safety-certified package

The formula includes pH-stabilisers to help keep the pH in the nutrient reservoir within the optimum range

Back Draft Damper - 4 Inch instore-only making it a practical baseBack Draft Damper is a galvanized ventilation damper for ducted fan systems, designed to help block reverse airflow and reduce air leakage during fan downtime. Built as a backdraft damper for ventilation ducting, its a straightforward airflow control component for growers and gardeners who rely on consistent air exchange. In spaces where air movement drives comfort and stability, unwanted reverse airflow can pull stale or outside air back through the