Active Aqua Grow Tray meters-&-solutions simply pull out 3 mm

simply pull out 3 mm (1/8") to clear the clogging which will improve response time and stability

PhysioSpec™ improves crop quality

The extended collar allows for easy duct installation and taping

The HI98100 Checker Plus pH tester has been designed with many advanced features while maintaining the look and feel of the original Checker

Active Aqua Grow Tray meters-&-solutions simply pull out 3 mmOur Active Aqua growing trays come in two popular sizes and make growing easy with their versatility and solid construction. Advanced channel design eliminates blockage and standing water to ensure proper and prompt drainage. They are perfect for holding Rockwool or Stonewool slabs, Hugo Blocks, Sure to Grow, or any loose growing media like peat, perlite, or starter cubes. You can also place planters into the trays. Outside Dimensions 40. 75" x 9. 75"