XP Aqua RO/DI Flood Guardian - OPEN BOX Reactors The sensor changes colour from

The sensor changes colour from yellow to green to blue as free ammonia increases

Zinc Sulfate

yellow 5 (artificial colors)

then place it in the aquarium at the desired depth

XP Aqua RO/DI Flood Guardian - OPEN BOX Reactors The sensor changes colour fromXP Aqua RO DI Flood Guardian OPEN BOX NEW Overview Tired of flooding your kitchen, garage or bathroom The RO DI Flood Guardian can be a real marriage saver and will help prevent accidental floods from ever happening again! What is Flood Guardian from XP Aqua Prevent floods by adding the super easy to install Flood Guardian to your RO or RO DI System. Never worry about forgetting to turn off your RO DI system or overfilling your reservoir again! Simply