WATER FILTER FOR AQUARIUM RO4 150GPD REVERSE OSMOSIS
RO4 AQUAVITA 150 GPD is an aquarium reverse osmosis filter for producing demineralized water for marine and freshwater aquariums. The s Read moreShow less
RO4 AQUAVITA 150 GPD is an aquarium reverse osmosis filter for producing demineralized water for marine and freshwater aquariums. The set includes 10-inch housings with AQUAVITA cartridges (sediment 20 µm, carbon block, sediment 5 µm) and the membrane AC-OM 150 GPD . Included is a 2-year supply of replacement cartridges (9 pcs.) and FR-FLUSH with BY-PASS for rinsing.membranes.
Benefits
- Reduces dissolved salts (TDS)
- Reduces water hardness
- Reduces chlorine
- Captures sand, sediment and rust particles
- Base water for aquarium preparation
Specifications
- Application
- Aquarium
- Compatibility
- RO4 system
- Depth
- 150 mm
- DI stage
- No
- Height
- 395 mm
- Filter media
- Activated carbon, Polypropylene
View full specifications
- Membrane capacity
- 150 GPD
- Product type
- Aquarium RO / RO-DI system
- Pump
- No
- Number of filtration stages
- 4 etap
- Technology
- Reverse osmosis
- Width
- 385 mm
Description
WATER FILTER FOR AQUARIUM RO4 150GPD REVERSE OSMOSIS is a complete reverse osmosis filter for preparing demineralized water for marine and freshwater aquariums. This reverse osmosis filter from AQUAVITA uses 10-inch housings, three-stage prefiltration, and an efficient AC-OM 150 GPD membrane, creating an effective reverse osmosis system for aquatics and other applications requiring very clean water. The set includes mounting accessories, a package of spare cartridges for 2 years of use, and a FR-FLUSH with BY-PASS for membrane flushing.

RO4 AQUAVITA system for aquatics and more
The original AQUAVITA aquarium filter with an AC-OM 150 GPD membrane and high-quality AQUAVITA filter cartridges has been designed for producing demineralized water. This solution is particularly valued in marine and freshwater aquatics, where stable water quality, low mineral content, and effective reduction of undesirable contaminants are essential.
The higher-output set helps obtain soft water with low pH and an almost zero content of nitrogen compounds. As a result, the water filtration system is suitable wherever a base is needed for further water preparation according to the requirements of a specific tank.
Water produced by this system can also be used for cosmetic and laboratory purposes, as well as for steam irons.

Why this water filter stands out in practice
The offered RO4 reverse osmosis set uses 10-inch RO housings and AQUAVITA cartridges, which makes it possible to achieve significantly higher flow rates compared with inline filters. This is an important advantage for users who expect more convenient operation and efficient water production for regular water changes.
An additional advantage of the AQUAVITA set is that all connections are routed to the front panel. This makes installation, hose organization, and everyday operation of the device easier.

How filtration works in the RO4 reverse osmosis system
Stage 1: AQUAVITA FCPS20 sediment cartridge
This is a high-quality cartridge with a filtration rating of 20 microns. At this stage, contaminants present in tap water, such as sand, silt, and rust, with particle sizes up to 20 µm, are removed.

Polypropylene nonwoven cartridges are distinguished by very good contaminant absorption. Their structure resembles foam, with a large number of open-cell microbubbles on the surface, which promotes effective sediment retention.
The filter is certified: PZH, TUV, BPA FREE and PHALATE FREE.

Stage 2: AQUAVITA FCBL10 / FCCBL10 activated carbon cartridge
The sintered activated carbon filter is essential for protecting the osmosis membrane. It removes 98% to 99% of free chlorine, chlorinated solvents, and aromatic hydrocarbons from the water, improving taste and odor.
In addition, it reduces chlorinated pesticides, polycyclic compounds, phenol, benzene, and organic substances by up to 85%. The carbon block is characterized by lower dusting than granular carbon.
The filter is certified: PZH, TUV, BPA FREE and PHALATE FREE.
Stage 3: AQUAVITA FCPS5 sediment cartridge
This is a high-quality cartridge with a filtration rating of 5 microns. At this stage, contaminants such as sand, silt, and rust present in tap water, with particle sizes up to 5 µm, are removed.

The filter is certified: PZH, TUV, BPA FREE and PHALATE FREE.
Stage 4: AC-OM 150 GPD osmosis membrane
The semi-permeable osmosis membrane AC-OM 150 GPD consists of multiple layers wound around a perforated core placed inside the membrane. Contaminated water is forced under pressure onto the membrane surface, where water molecules pass through microscopic pores.
Contaminants are separated and discharged to the drain. Purified water passes through the openings to the central core and, under pressure, flows out of the membrane.

The membrane retains 96–99% of organic and inorganic contaminants dissolved in water, heavy metals, and radioactive elements with a size of 0.01 micron.
What you get in the set
This reverse osmosis system is prepared as a complete set for installation and use. The package includes:

- RO4 AKVA LINE filter
- AC-OM 150 GPD membrane
- FCPS20 AQUAVITA sediment cartridge
- FCBL10 AQUAVITA carbon cartridge
- FCPS5 AQUAVITA sediment cartridge
- spare cartridges (9 pcs.)
- FR-FLUSH
- drain connection clamp
- water connection of choice: 1/2 (approx. 20 mm) or 3/8" (approx. 16 mm) or 3/4" (approx. 25 mm)
- 6 m hose (3 sections of 2 m each)
- housing wrench
- PTFE tape
Additional equipment increasing ease of use
Complete set of AQUAVITA spare cartridges for 2 years
The set includes a complete set of original AQUAVITA BPA FREE cartridges for 2 years of system use. The package contains 9 pieces, which makes service planning easier and helps maintain high filtration efficiency for a long time.

FR-FLUSH with BY-PASS for RO membrane flushing
The set includes FR-FLUSH – a kit for flushing the RO membrane, containing a BY-PASS and mounted to the flow restrictor. This solution makes it possible to flush sediment from the RO membrane, extending its service life by several years.
Membrane operation: the membrane should be flushed 1 to 2 times a month during system operation. To do this, open the BY-PASS valve so that water can flow freely to the drain, then close the valve after about 2 minutes. This procedure allows the RO membrane to be flushed under high pressure.

Technical specifications
| System type | RO4 / aquarium reverse osmosis filter |
|---|---|
| Membrane | AC-OM 150 GPD |
| Housings | 10-inch |
| Stage 1 | AQUAVITA FCPS20 sediment cartridge, 20 µm |
| Stage 2 | AQUAVITA FCBL10 / FCCBL10 carbon cartridge, sintered activated carbon block |
| Stage 3 | AQUAVITA FCPS5 sediment cartridge, 5 µm |
| Membrane efficiency | 96–99% of dissolved contaminants |
| Membrane precision | 0.01 micron |
| Height | 39.5 cm |
| Depth | 15 cm |
| Width | 38.5 cm |
Choose a set or individual cartridges. Replacement intervals depend on the cartridge and operating conditions.
Cartridge sets 2
Individual cartridges 17
More products (11)
Membranes 1
Additional accessories 3
Questions
What aquariums is the WATER FILTER FOR AQUARIUM RO4 150GPD REVERSE RO4 AQUAVITA 150 GPD suitable for?
The filter was designed primarily for marine and freshwater aquariums where demineralized water is needed to prepare the proper working parameters. It is suitable wherever soft, clean water with a very low level of contaminants is important.
What filtration stages does this system use?
The system uses four stages: a FCPS20 20 µm sediment cartridge, an FCBL10 / FCCBL10 activated carbon cartridge, a FCPS5 5 µm sediment cartridge, and an AC-OM 150 GPD osmosis membrane. This arrangement protects the membrane and allows effective water treatment.
What does the AC-OM 150 GPD osmosis membrane remove?
The membrane retains 96–99% of organic and inorganic contaminants dissolved in water, as well as heavy metals and radioactive elements with a size of 0.01 micron. Contaminants are sent to the drain, and purified water is collected as the filtration product.
Are spare cartridges included in the set?
Yes. The set includes a package of spare AQUAVITA cartridges for 2 years of system use. The package contains 9 pieces, which makes routine servicing easier and helps maintain proper filtration efficiency.
What is the purpose of FR-FLUSH with BY-PASS?
FR-FLUSH is used to flush the RO membrane. It is mounted to the flow restrictor and enables sediment to be flushed from the membrane surface, which can extend its service life by several years.
How often should the membrane be flushed?
The membrane should be flushed 1 to 2 times a month during system operation. You need to open the BY-PASS valve so that water can drain freely to the sewer, and then close the valve after about 2 minutes.
What water connection is included in the set?
The set includes a water connection of choice: 1/2 (about 20 mm), 3/8" (about 16 mm), or 3/4" (about 25 mm). This makes it easier to match the system to an existing installation.
Is the filter intended only for aquariums?
No. In addition to aquarium applications, the water from this system can also be used for cosmetic and laboratory purposes, as well as for steam irons.
What are the device dimensions?
The filter is 39.5 cm high, 15 cm deep, and 38.5 cm wide. Also allow for space for hose connections and convenient service access to the housings.