Ozone 0150, Oxygen and CO2 (Carbon Dioxide) Reactor.

Ozone, Oxygen, C02 Diffuser 0150 Reactor.
Rated up to 150 gals/ 660l
https://youtube.com/shorts/6QuGE29iJmA?si=KG0w7pbmksjI7ldi
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. 
For greater efficiency we now use a Venturi type manifold to pre-mix the water and ozone before entering the ozone reactor chamber, allowing greater gas exchange and oxidation of organic material than simply bubbling ozonated air through a column of water.
These reactors can also be used to diffuse Oxygen and Carbon Dioxide into the water, where extra dosing is required.
The O300 can be fitted Externally, in cabinet, below aquarium or Externally or Internally in sump.
Kit includes:
O150 Reactor, Venturi Type Manifold and Control Valve.
Requires:
Carbon Reactor and ozone generator when using Ozone.
Other requirements.
Water Air pump and Piping.
Water Pump: 500lph
Air Pump: 300lph
Hosetails:
Inlet 12mm and Outlet 12mm
Dimensions
Height            : 400mm
Footprint        :135 x 135 mm
Chamber Dia: 90mm