Grodan Gro-Block Improved GR7.5 Medium with Hole, 4" x 4" x 3" - Case of 192 PAR Increases resistance against salinity (nutrient

Increases resistance against salinity (nutrient salt buildup) by limiting uptake of excess minerals present in the planting medium

The Hanging Ratchet Light Hangers are small

High accuracy +/- 30ppm/0

The addition of 10K UV light towards the end of the bloom cycle increases resin production in flowering plants as a defense mechanism in response to the ultraviolet light

The ROI-FV is controllable with Grower’s Choice Master Controller and is compatible with all quality master controllers

Grodan Gro-Block Improved GR7.5 Medium with Hole, 4" x 4" x 3" - Case of 192 PAR Increases resistance against salinity (nutrientNew and improved stone wool substrate with advanced wetting technology from Grodan Introducing Grodan Gro Blocks Improved, a product specifically engineered to deliver real results for your crops, developed by plant scientists, researchers, and top growers. A core component of the "Precision Growing" philosophy, Grodan Gro Blocks Improved with Advanced Wetting Technology allow you to cultivate more uniform and high quality crops while using less water