Sierra Natural Science SNS 217C - Spider Mite Control Concentrate - 5 GAL / 20 L grow-light-bulbs New and improved wetting agent

New and improved wetting agent and hydrophilic technology greatly enhances the water characteristics of Grodan Gro-Blocks Improved giving even better water distribution over the height of the block

Universal BNC connector makes this the perfect replacement electrode

Tank: Jackated Cooling Tank

This means better quality flowers with a stronger aroma and taste

Grodan comes in graduated sizes

Sierra Natural Science SNS 217C - Spider Mite Control Concentrate - 5 GAL / 20 L grow-light-bulbs New and improved wetting agentSNS 217C kills spider mites and their eggs by coating them with an oily shield which prevents respiration. Mites dry out and die, while their eggs are prevented from hatching. Spray on affected plants to kill and repel spider mites, broad mites, russet mites, and their eggs. FEATURES: OMRI Listed, Organic, and EPA Exempt Child and pet safe Kills and repels spider mites, broad mites, russet mites, and their eggs 0 day re entry interval DETAILS: Spider