AgrowTek GC-XO Slave Expansion Controller Seed + Cloning Plugs This solution is also available

This solution is also available in combination kits with the pH 7 buffer for the easy calibration of multiparameter instruments

Soluble Potash (K2O)……………………………………4%

15 lb Warranty Lifetime guarantee Origin Made in USA SKU 708948

Standardize a room on 208V or 240V single-phase

AgrowTek GC-XO Slave Expansion Controller Seed + Cloning Plugs This solution is also availableExpand your GrowControlTM System with a GC XO Slave Controller The GrowControlTM GC XO slave adds more outputs to existing GC Pro or GC ProXL series controllers. GC XO controllers have the same construction as GC Pro controllers, but are equipped with only outputs for turning relays on an off. Slave controllers do not have any of their own control functions, they simply turn on and off as required by the "master" controller that they are listening to.