Grodan Stonewool Grow Chunks 2 cu ft Intake / Pre-Filters Simple push button pH calibration

Simple push button pH calibration system

Selectable values for conductivity and temperature

Compatible for use with 5-gallon buckets or tubs

both vertical and horizontal

Pre-wired 5 Feet power cord (UL Listed)

Grodan Stonewool Grow Chunks 2 cu ft Intake / Pre-Filters Simple push button pH calibrationLight, airy & versatile. Grow Chunks are about 3 4 inch square each and can be used in pots around blocks or alone. They are easily combined with other media, such as layering with coco fiber or clay pellets. They can also be combined with soil for added aeration and increased moisture holding properties. Great for hydro systems or container gardening.