Tunze RO Water Controller With D3 Bactershield works to protect and

Bactershield works to protect and strengthen your fish's natural first line of defense

Reduces stool and odours

After all the excitement

for stimulation and acceleration of beneficial pond bacteria

Fluval M-Series submersible heater

Tunze RO Water Controller With D3 Bactershield works to protect andThe Tunze RO Water Controller is an automatic shut off device used to control the water produced by a reverse osmosis (RO) unit. It consists of the electronic controller with two float switches, a water control solenoid valve and a 11 volt power supply. One of the float switches can be located at the high level of the RO storage tank and the other is put lower down in the tank as a power off. The water control solenoid valve is then plumbed into the