Ozone, Oxygen, C02 Diffuser Reactor.

https://youtu.be/R-7U1OuuztY

The Ozone reactor works by mixing the water and ozone under pressure within a reactor ... using the wet and dry method, and with reverse flow to allow greater contact time between water and ozone. 

These reactors can also be used to diffuse Oxygen and Carbon Dioxide into the water, where extra dosing is required.

The O1502 should be situated in cabinet below aquarium or In or Next to sump. 

Kit includes:

O1502 Reactor and Control Valve x 2

Requires:
Carbon Reactor, Carbon Media, 12mm control valve, 12mm flexi piping (2m)
Water and Air pump and an ozone generator.

Water Pump: 500lph

Air Pump: 300lph

Hosetails:

Inlet 12mm and Outlet 12mm

Dimensions

Height            : 400mm

Footprint        :135 x 135 mm

Chamber Dia: 90mm