WaterGATE Electronic Solenoid Valve spl_bfg Roots Organics Seabird Guano is

Roots Organics Seabird Guano is an excellent source of phosphate and calcium

DISM sensor included

comprehensive gardener's tool in powder form

Conductivity Accuracy: 2% full-scale 1 LSD

For cup style

WaterGATE Electronic Solenoid Valve spl_bfg Roots Organics Seabird Guano isThis 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.