$49.95
The Aqua One Maxi 103F is a reliable, quiet and energy-efficient internal filter suited to aquariums up to 100 litres. Part of the long-running and well-regarded Maxi series, the 103F delivers solid mechanical and biological filtration in a compact, fully submersible unit, making it a great choice for community aquariums, tropical setups and coldwater tanks alike. Backed by a 2 + 1 year guarantee and built to last, it’s the kind of filter you set up once and forget about.
| Silent Running | Proven quiet operation: ideal for living rooms, bedrooms and offices where noise is a consideration. |
| Submersible Sealed Motor | Fully submersible and economical to run at just 13.2W. |
| Mechanical & Biological Filtration | High-quality foam media traps debris while simultaneously providing a surface for beneficial bacteria to colonise and process ammonia and nitrites. |
| Built-in Venturi Aeration | The integrated venturi outlet introduces air bubbles into the water return, improving surface agitation and oxygen exchange — great for fish health. |
| Adjustable Flow Controller | Built-in flow adjuster allows you to increase or reduce output to suit the needs of your fish and tank. |
| Multiple Outlet Options | Comes with spray bar, venturi outlet and hose connection options for flexible water flow placement. |
| Suction Cup Mounting | Includes 4 suction cups for secure attachment to aquarium glass. Can be positioned vertically or horizontally to suit shallow tanks. |
| 1.8m Cable | Generous cable length for flexible placement and easy cord management. |
| Guarantee | 2 + 1 year guarantee for peace of mind. |
| Model | Maxi 103F |
| Max Tank Volume | 100 litres |
| Flow Rate | 960 L/hr |
| Power Consumption | 13.2W |
| Dimensions | 8L x 6D x 28.5H cm |
| Cable Length | 1.8m |
| Suitable For | Coldwater, tropical and marine aquariums |
| Guarantee | 2 + 1 years |
| Code | Description |
| 27I | Impeller Set: Maxi 103F |
| 27S | Replacement Sponge: Maxi 103F |
Recommended Additions
Maintenance tip: Clean the sponge monthly by rinsing it gently in a bucket of water taken from your aquarium. Never use tap water, as the chlorine will kill the beneficial bacteria colony living in the foam. Replace the sponge once it begins to lose its shape and structural integrity.
Not sure if the 103F is the right size for your tank? We’re happy to help.
Get in touch for free expert advice anytime.
⚠️ Heads-up: Never run this filter out of water. The motor relies on water for cooling and will overheat and be damaged if operated dry, even briefly.
