Grodan Gro-Block Improved GR7.5 Medium with Hole, 4" x 4" x 3" - Case of 192 PAR The ROI-FV is controllable with

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

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 Hanging Ratchet Light Hangers are small

Material SAE 304 Stainless Steel OSHA Compliant Yes Cord Length 7 feet Life Cycle 10 Years or 8

High accuracy +/- 30ppm/0

Grodan Gro-Block Improved GR7.5 Medium with Hole, 4" x 4" x 3" - Case of 192 PAR The ROI-FV is controllable withNew 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