The ARKA myAQUA® 400 quickly and effectively filters up to 99% of salts, bacteria, and pollutants present in tap water, such as nitrates, phosphates, pesticides, and heavy metals. It provides osmosis water suitable for the most demanding aquariums.
Thanks to its advanced design, the ARKA myAQUA® 400 achieves an excellent osmosis water/residual water ratio of up to 1:1. This performance significantly reduces water waste compared to traditional systems.
The system exclusively uses natural filtering materials, without chemical additives.
| Daily Production | Up to 400 liters of osmosis water |
| Osmosis water/residual water ratio | Approximately 1:1 to 1:1.5 |
| Salt Retention Rate | Up to 99% |
| Flow Rate | Approximately 0.3 L/min |
| Operating Pressure | 1 – 4 bar |
| Usable Water Temperature | 5 – 45 °C |
| Power Consumption | 48 W (standby 1–2 W) |
| Voltage | 24 V |
| Dimensions | Approximately 355 x 220 x 440 mm |
| Reference | #MA400 |
The ARKA myAQUA® 400 is equipped with an automatic protection function. The production of osmosis water automatically stops if the incoming pressure drops below 0.8 bar. When the pressure becomes sufficient again, the system resumes normal operation.
With the provided accessories, the ARKA myAQUA® 400 can be easily connected to standard household installations.
| 1/4" Hose | 500 cm |
| T-Piece Connector 3/8“ – 3/8“ – 1/4“ with valve | 1 piece |
| Tap Adapter 3/4“ – 1/4“ | 1 piece |
| Shut-Off Valve 1/4“ – 1/4“ | 1 piece |
| Power Supply | 1 piece |
| Drain Clip | 1 piece |
| Filter Wrenches | 2 pieces (small and large) |
The ARKA myAQUA® 400 is recommended for the production of osmosis water for freshwater and marine aquariums. For maximum purity, it can be complemented by a resin filter in post-filtration.
The ARKA myAQUA® 400 is a high-performance, water-saving, and reliable solution to ensure a very high-quality water base in aquaristics.