Elegant glass diffuser, small but highly effective, to dissolve CO2 in aquarium water and ensure perfect plant growth. 3 models: Mini 40-120 l Midi 40-300 l Maxi 160-800 l. Installation: connect the diffuser to the CO2 feed pipe (4/6) and suction-cup it to the glass near the bottom. Even flow and efficient distribution: special ceramic for particularly fine CO2 bubbles, integrated ceramic membrane. Easy cleaning: place the entire diffuser in a cleaning solution for 24 hours. Contents: 1 glass diffuser, 1 suction cup clip