GroLine Soil pH Tester controllers • Fits all Growboxes with

• Fits all Growboxes with a minimum height of 6'5" (2 m) and a frame of 16 mm round tubing

Why use filters

Big Rootz is carefully formulated to meet the needs of professional growers

We combine major growth promoters like fish meal and seaweed with composted poultry litter

maintaining relative humidity at 62% in a contained environment

GroLine Soil pH Tester controllers • Fits all Growboxes withDesigned to bring simplicity to pH testing of soil, the HI981030 GroLine Soil pH Tester is designed for taking direct pH measurements in soil for environmental and agricultural testing. The built in probe features an open reference junction, conical glass tip, and a removable sleeve design making it ideal for measuring the pH of soil. 0. 05 pH accuracy Comes with all the necessary solutions and batteries everything you need to get started measuring