AgrowTek GC-XO Slave Expansion Controller Seed + Cloning Plugs Mineral buildup and lockout is

Mineral buildup and lockout is a major causes of deficiencies and plant health problems-solve these issues with Athena Cleanse

Soluble Potash (K2O)……………………………………4%

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

it's a lightweight drop-in for any 1000W double-ended fixture platform

AgrowTek GC-XO Slave Expansion Controller Seed + Cloning Plugs Mineral buildup and lockout isExpand 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.