Apera Instruments GroStar GS1 pH Pen Rockwool Slabs This solution functions as a

This solution functions as a root stimulator and disease inhibitor which encourages explosive root production

*Check your R/O system regularly

The easy2grow 24 Site System is easily extended so many pots can be linked to a single reservoir

What’s more: coco coir contains high levels of naturally occurring potassium

Apera Instruments GroStar GS1 pH Pen Rockwool Slabs This solution functions as aLab grade instruments designed specifically for growers! The GS1 pH Pen includes: pH 7 & pH4 calibration solution (50ml bottle each), KCL storage solution (10ml bottle), lanyard and user manual Measures pH and temperature Premium probe technologies and materials ensure high accuracy and durability with minimal maintenance Easy to use design and fast calibration adjustment Double junction replaceable probe, so you dont have to discard the entire pen