HYDROTON Small 10 L (or a different brand of Clay Pebbles) 4.9X4.9X6.6 FT It is designed to be

It is designed to be used only once to give your plants an additional push to produce extra lush green vegetative growth

Double-Throw (Spdt) Output Relay

Two plastic tank washers (item #: 702712) included

healthy and year-round plant growth

and soil growing mediums

HYDROTON Small 10 L (or a different brand of Clay Pebbles) 4.9X4.9X6.6 FT It is designed to beThe original Hydroton brand expanded clay is a unique, lightweight expanded clay Aggregate made in Germany. This natural clay is mined, formed into pellets, then kiln fired at high temperatures to cause the clay to expand into tough, lightweight balls. Clay naturally has balanced capillary action, with an ideal surface structure. Hydroton brand expanded clay is semi porous & generally does not float like other products can. For best results, rinse all