Twister Aluminum Nesting Drying Rack System, 20 Trays reflective-and-greenhouse-films A single calibration solution for

A single calibration solution for pH and conductivity makes calibration fast and ensures all of your measurements are accurate each time for better plant health and better yield

Replaceable Membranes

Handle sold separately

The GrowBoss is a constant monitoring meter that indicates to the grower the exact levels of nutrient strength

Just swap the tumbler out and keep running

Twister Aluminum Nesting Drying Rack System, 20 Trays reflective-and-greenhouse-films A single calibration solution forDesigned for producers with high humidity environments, strict screening, and storage constraints. Made of high density natural polypropylene mesh with the optimal open rate and space between ledges so air can properly circulate between trays. Maximize airflow and make drying a breeze. Unlike tall trays, where the product has a tendency to pile on top of each other and thus creating a mold supported environment, our low height trays encourage single