Grodan Stonewool A-OK Starter Plugs complete grow kit Durable Leap pH Probe: Toughened

Durable Leap pH Probe: Toughened tip for reliable measurements in any substrate

Health Hazards: Inhalation of pentane vapor can cause respiratory irritation

Triple Film Lamination: Consisting of three protective layers

resulting in a larger harvest

all metal joints for superior strength and ease of installation

Grodan Stonewool A-OK Starter Plugs complete grow kit Durable Leap pH Probe: ToughenedA OK Starter Plugs for starting seeds and rooting of cuttings prior to plugging into the larger Gro Blocks. A OK Starter Plugs come labeled with instructions in a shrink wrapped sheet that fits a standard 10 x 20 tray (flat). Note: Item #713020 is supplied without shrink wrap.