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pint and gallon
which must be purchased separately
yet it is free-draining for frequent feeding of fast-growing
(4) RAW Calcium/Mag - 2 oz
a nutrient-rich
WaterGATE Electronic Solenoid Valve spl_ps pint and gallonThis optional valve (used in place of a pump) is designed to be installed in a pressurized water line and to be controlled by your CO2 monitor. This is a high quality solid brass valve designed for years of service. The valve has 3 4" NPT outlets that can be used to attach the valve inline with your existing plumbing or you can use the supplied " hose barbs to make the connection. You will need either a pump or a valve, but not both.
