IWS AutoDrain Control Unit (Return Waste/Drain) Size:Standard (16mm) Supplied in a convenient 250ml

Supplied in a convenient 250ml bottle for repeated use

Features a timer controller with four dimming levels and timer settings that repeat daily to further maximize seedling growth

Low-molecular-weight humic/fulvic acid for chelation and improved uptake

Easy to handle and portion

IWS AutoDrain Control Unit (Return Waste/Drain) Size:Standard (16mm) Supplied in a convenient 250mlIWS standard control units(brain buckets) are the heart of the IWS Flood and Drain system, they feature a timer that allows the grower to control the number of flood cycles(with the Pro versions allowing control over the length of flood) within their Flood and Drain system.