Marina Slim Filter S20 – 76L (20 US Gal)
The Marina Slim S20 Power Filter’s unique compact and slim design provides both practical and aesthetic benefits: it takes up less space than standard size filters and it brings a touch of elegance to your aquarium.
The filter comes equipped with an adjustable flow control so you can adjust the water flow level in your tank. Its motor is submerged in the water and operates very quietly.
Installation and start-up is easy – no priming required. Just plug it in and watch it go! Maintenance is quick, simple and convenient.
The Power Filter includes four filter cartridges: 2 Bio-Carb and 2 Bio-Clear, both containing Ceramitek, a highly porous ceramic filter medium that optimizes biological filtration for a healthy aquarium.
| Specification | Detail |
|---|---|
| Filter Model | S20 |
| Capacity | 76L (20 US Gal) |
| Flow Control | Adjustable |
| Filter Cartridges | 2 Bio-Carb, 2 Bio-Clear |
| Filter Medium | Ceramitek |
| Motor Type | Submersible |
| Noise Level | Very quiet |
FAQ
Can the water flow be adjusted after installation?
Yes, the filter features an adjustable flow control, allowing you to modify the water flow level according to your tank’s needs.
Does the filter require priming before use?
No priming is required. Simply plug it in and the filter will start working immediately.
How often should the filter cartridges be replaced?
Please contact customer service for information on replacement frequency based on usage conditions.

Ava Gill –
The filter fits well in my small tank and looks sleek. The flow is adjustable and quiet. I’ve used the Bio-Carb and Bio-Clear cartridges for a few months and the water clarity has improved noticeably.
Jake Pullman –
I liked the compact design and how easy it was to set up. The flow control helps me manage water movement in my tank. Maintenance is simple and I can clean the cartridges every two weeks.
Leonard Howard –
The ceramic media in the cartridges works well for biological filtration. My fish have stayed healthy, and the water looks clean after a few weeks of use.
David Ogden –
It’s a good choice for a small aquarium. The quiet operation is a plus, and the design doesn’t take up much space. I’d recommend it to others with similar tank sizes.