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Winflexventilation offers you a steel check valve of Ø100mm
Non-return valve for ducts. Intended for ventilation systems operating in a punctual way, the valves allow to avoid the entry of external air in the culture chambers, in case of fan stop.
Suitable for ducts, Ø100mm outlets. Made of steel.
Know how to plant without planting yourself!
Indoor cultivationthis is the preferred choice of all growers for indoor cultivation.