- Brand: JBL
- Proflora SafeStop Safety Valve
- Water backflow stop for CO2 systems.
Special water backflow stop for aquarium accessories.Accessory for CO2 systems, pH control devices and solenoid valves. Easy to install: integrate the backflow stop between diffuser and CO2 system with the arrow in the direction to the aquarium. For CO2 hoses with ¯ 4/6mm.