The JBL ProFlora v002 Solenoid 12 V valve reliably controls the supply of CO2-to the aquarium. The CO2-supply can be interrupted at night by the time switch on the lighting or, in combination with electronically ph controller, the CO2-supply can be varied according to the pH level.
- Arman A. wrote about JBL ProFlora v002 Solenoid valve 12 V in 2016:
Very qualitily and necessary thing. It can be connected to hose or directly to pressure valve.