Oase OxyMax 100 Air pump, German made powerful and quiet, comes complete with air line and diffuser. The pump can be placed on its base but also can be hung from the hanging lug. The air out put is approx. 100 litres per hour. Air output can also be controlled using the dial that is found on the front of the unit. The output is controlled electrically, rather than the cheap air bleed screw on other makes. for this reason, control is more precise and the pump quieter. Oase OxyMax 100 Air pump pumps out 100 litres of air will run the following or similar sized and smaller air stones. Do not forget your check valve. https://www.abyssaquatics.co.uk/product/jbl-prosilent-aeras-micro-medium/ https://www.abyssaquatics.co.uk/product/jbl-prosilent-aeras-micro-plus-medium/ Marina Bubble Disk (7.5cm) JBL ProSilent Safe One Way Valve
