Replacement filters for reverse osmosis system and water filter

Replacement Filters & Membranes for Reverse Osmosis Systems and Water Filters – for consistently pure water

To ensure your reverse osmosis system or water filter system consistently delivers pure drinking water, you should regularly replace filters and membranes. Only with suitable replacement filters and a functional reverse osmosis membrane will water quality remain at the highest level.

Here you will find high-quality replacement filters for reverse osmosis systems – individually or as practical reverse osmosis replacement filter sets.

We offer a wide selection of renowned brands in the water filter industry such as Evodrop, Maunawai, PI Power Compact or Arktisquelle, which stand for certified quality and long lifespan.

Why is filter replacement so important?

For your reverse osmosis system to consistently deliver pure drinking water and function perfectly, all filter stages must be replaced regularly.

Over time, sediment and activated carbon filters become clogged with particles, chlorine, and organic residues. This reduces filter performance, and contaminants can penetrate to the reverse osmosis membrane.

The membrane itself also loses its retention capacity over time: dissolved salts, heavy metals, and microorganisms are no longer completely removed, and the flow rate noticeably decreases. Timely replacement ensures that the retention rate of up to 99% is maintained.

Equally important are the post-filters. If they remain in use for too long, germs or deposits can form in them, affecting the taste.

So, stay on the safe side by regularly replacing pre-filters, post-filters, and the membrane.

Tip: You can generally change the filter yourself. This process varies slightly depending on the system. If you prefer to entrust the change to professionals, our installation service can carry it out. This ensures that everything is optimally connected – and you also receive a warranty on the installation.

What filter types are there?

A reverse osmosis system usually consists of several filter stages that together remove up to 99% of all foreign substances:

• Pre-filters: Protect subsequent filter stages by retaining coarse dirt particles and limescale residues. They are crucial for the lifespan of the membrane.
• Sediment filters: Remove fine particles such as sand, rust, and suspended solids from the water.
• Activated carbon filters: Bind chlorine, pesticides, herbicides, and organic compounds that can affect the taste and smell of the water.
• Reverse osmosis membrane: Filters the finest substances down to 0.0001 microns – the heart of every system.
• Post-filters: Refine taste and odor, often using activated carbon.

Reverse Osmosis Membrane – The Heart of Every RO System

The reverse osmosis membrane, also called RO membrane, is the heart of every reverse osmosis system. It separates pure water from pollutants, chemicals, salts, and microorganisms – ensuring that you can enjoy clear, clean, and healthy drinking water at all times. High-quality water filter membranes work precisely and reliably.

What is a reverse osmosis membrane and how does it work?

A reverse osmosis membrane consists of a semi-permeable polymer film with a fineness of 0.0001 microns that only allows pure water molecules to pass through. Impurities such as heavy metals, bacteria, and chemicals are retained.

The process of reverse osmosis is as follows: water is forced under pressure through the fine structure of the membrane, allowing only purified water to pass through.

A functional reverse osmosis system membrane removes up to 99% of all foreign substances and is therefore crucial for the water quality of your system.

What to look for when buying an RO membrane

When choosing a new reverse osmosis membrane, you should check the following points:

• Filtration rate: Choose the appropriate performance depending on your needs and water consumption.
• Lifespan: Typically 2–3 years – depending on water quality and usage.
• Compatibility: Make sure the membrane is compatible with your reverse osmosis system.
• Quality: Rely on certified brand products for consistent retention rates.

Tip: High-quality water membrane filters ensure consistent flow, long durability, and consistently high purity.

Another important factor is the size of the membrane: performance is specified in GPD (Gallons per Day).

• Small household water filters: approx. 50–100 GPD
• Medium systems: 400 GPD
• Professional and commercial systems: 600 GPD and more

Tip: The higher the value, the more RO water your system produces per hour. So, choose the RO membrane that matches your model and your daily water needs.

Replacement Filter Sets – All Filters in One Package

Our replacement filter sets contain all the necessary filter stages for the respective reverse osmosis system or water filter system, and often the reverse osmosis membrane is included. This way, you don't have to search for each part individually and can easily perform the filter change yourself. The sets are designed for systems from renowned brands and ensure optimal coordination of all components.

At Mein-Wasserfilter.com, you'll find replacement filters and membranes from renowned brands. Among others, we carry:

Evodrop: EVOsorb technology, deep filtration, and 80% limescale protection.

Maunawai: PI technology for structured, natural water.

PI Power Compact: Compact filter solutions with PI technology.

Arktisquelle: Osmosis filters with optional thermal function.

Entron: Drinking water systems with unique MAIFAN filtration.

Each brand stands for tested quality, perfectly fitting filters, and reliable results.