
Filtration of drinking water
Water is an essential product for humans to survive. In addition to drinking a glass of water directly from the tap, we also use water in connection with e.g. cooking – where the water also comes into contact with the food we prepare. It is therefore important that the water is completely free of unnecessary particles that do not necessarily belong in our drinking water.
Read more about drinking water further down the page
Why does drinking water taste so different? You can read more about this in our article here:
- Replacementfilter Set - AQUAPHOR Eco Pro H€53.00 €42.40
This replacement set is developed for Aquaphor Eco Pro H. It ensures stable performance and clean, great-tasting drinking water directly from the tap.
Contents and function
- 1 x Pro 1 prefilter
Filters sediment, rust, and other larger particles. Protects the following filter stages and improves water clarity. - 1 x Pro H filter
Reduces limescale and water hardness. Helps protect household appliances and improves taste and water quality. - 1 x Pro HF filter
Fine filtration of smaller particles and reduction of chlorine and organic impurities. Contributes to fresh, clean drinking water.
Replacement interval
Pro 1, Pro H, and Pro HF should be replaced every 12 months at the latest or after 8,000 liters to ensure optimal filtration, hygiene, and stable performance. The replacement interval may vary depending on water quality and usage.
With this replacement set, you keep your Aquaphor Eco Pro H in top condition. You get clear, fresh, and softer drinking water every day.
- 1 x Pro 1 prefilter
- AQUAPHOR Eco Pro H€160.00 €128.00
AQUAPHOR Eco Pro H is a compact and efficient water softener filter that fits neatly under the sink. With this system, you get fresh and clean drinking water without limescale, pesticides, heavy metals, and other impurities – directly from your tap.
The system consists of three advanced filters:
PRO 1: 2-in-1 filter for mechanical and sorption filtration. Filters down to 3 µm and removes chlorine and pesticides. PRO H: Regenerable ion-exchange softening filter. Reduces limescale, iron (Fe2+), and manganese. PRO HF: High-performance filter down to 0.1 µm. Removes heavy metals, organic substances, and allergens.
Eco Pro H comes with a separate faucet, allowing you to easily choose between unfiltered tap water or filtered water.
Benefits:
- Reduces limescale and protects appliances
- Filters pesticides, chlorine, heavy metals and allergens
- Compact design for under-sink installation
- Easy filter replacement
- Comes with an extra faucet for filtered water
- AQUAPHOR Crystal Soft€160.00 €128.00
AQUAPHOR Crystal Soft is an advanced water filter system that combines efficient softening with improved taste and easy maintenance.
The system is equipped with two softening filters that reduce calcium and magnesium bicarbonates. This lowers carbonate hardness and prevents limescale build-up in appliances such as kettles and coffee makers. The filters require no regeneration, making the system practical and convenient.
After softening, an activated carbon filter ensures a balanced taste by removing chlorine and other impurities.
With the built-in bypass control, you can adjust the mineral content of the water to achieve the desired balance between softness and natural minerals. An integrated flow meter provides an overview of remaining capacity, making it easy to plan filter replacement.
Benefits:
- Dual softening filters reduce limescale and protect appliances
- Carbon filter improves taste and removes chlorine
- Adjustable bypass control for optimal mineral balance
- Easy maintenance – no regeneration required
- Capacity up to 3,000 liters
AQUAPHOR Crystal Soft is the ideal choice if you want soft, great-tasting and limescale-free water straight from the tap – with minimal effort.
- Replacementfilters - AQUAPHOR Crystal Soft€60.00 €48.00
This complete replacement set is designed for AQUAPHOR Crystal Soft and ensures your system continues to deliver soft, clean and great-tasting water.
Includes and benefits:
- 2 x KHC softening filters – reduce calcium and magnesium bicarbonates, lower hardness and prevent limescale
- 1 x K2 carbon filter – removes chlorine and other impurities, improves taste
- Easy replacement – no regeneration required
- Capacity up to 3,000 liters
Keep your AQUAPHOR Crystal Soft performing at its best – for soft, limescale-free and fresh-tasting water every day.
- AQUAPHOR Duo Pro HF€80.00 €64.00
Get clean and safe drinking water directly from the tap with Aquaphor Duo HF Pro. This compact 2-stage water filter combines efficient chemical filtration with strong antibacterial protection, without the use of chemicals.
The system removes harmful substances such as iron, heavy metals, pesticides, phenols and chlorine, as well as particles down to 3 microns. At the same time, the advanced hollow fiber membrane stops bacteria and cysts down to 0.1 microns, protecting you even against chlorine-resistant microorganisms.
You get better taste, improved smell and higher safety in your drinking water, even in areas with unstable water quality. Ideal for both permanent homes and locations with challenging water conditions.
The system is compact, easy to install under the sink and requires minimal maintenance. Filter cartridges are replaced quickly and easily.
Benefits:
- Effectively removes iron, heavy metals, pesticides and chlorine
- Protects against bacteria and cysts without chemicals
- Filters particles down to 0.1 microns
- Significantly improves taste and smell
- Especially suitable for motorhomes, holiday houses and private wells
- Replacement Filter - AQUAPHOR Duo Pro HF€53.00 €42.40
This replacement filter set is designed for AQUAPHOR Duo Pro HF and ensures stable filtration with clean, great-tasting drinking water. The filters keep your system in optimal condition and provide consistent water quality.
Contents and benefits
- 1x Pro 1 pre-filter
The Pro 1 pre-filter removes sand, rust, and larger particles. It protects the main filter and extends filter lifespan. - 1x Pro HF filter
The Pro HF filter filters down to 0.1 µm and removes bacteria, microorganisms, and fine particles. It reduces chlorine, organic compounds, and unpleasant taste and odor while preserving the water’s natural mineral balance.
The filters are designed for quick and easy replacement without tools.
Replacement interval
Pro 1 and Pro HF are replaced once per year or after 8,000 liters, whichever comes first.Regular replacement ensures optimal filtration, good hygiene, and reliable water quality.
Keep your drinking water clean with a replacement filter for AQUAPHOR Duo Pro HF. Drinking water filter with 0.1 µm filtration and high bacteria reduction.
- 1x Pro 1 pre-filter
- AQUAPHOR Crystal K1 - FilterSpecial Price €17.00 €13.60 Regular Price €21.00
Replacement filter cartridge for reverse osmosis system Crystal RO-202sc.
K1 pre-filter filtrates sediments, dirt and impurities up to 10µm in size.The filter catridge should be replaced every 6 months to prevent bacteria build-up int the filter.
- AQUAPHOR Crystal K2 - Filter
Replacement filter cartridge for reverse osmosis system Crystal RO-202sc.
K2 pre-filter filtrates sediments, dirt and impurities up to 3µm in size.
Reduces chlorine, heavy metals such as lead, copper, and mercury, organic compounds and other harmful
impurities
The filter catridge should be replaced every 6 months to prevent bacteria build-up int the filter. - AQUAPHOR Crystal K3 - FilterSpecial Price €13.00 €10.40 Regular Price €16.00
Replacement filter for drinking water.
The filter fits Crystal H / Crystal H-B.
K3 is a 5µm prefilter of activated carbon that filters sediments and dirt.
The filter can also be used separately with a single water filter head.
The filter is easy to replace and should be changed every 6 months or after 6000 liters to avoid the formation of bacteria in the filter.
Designed with CarbFiber Block technology, the replacement filter pre-treats the water by removing organic impurities, heavy metals and chlorine. It filters particles down to 5 micron in size.
The increased amount of selective ion-exchange Aqualen fibers contributes to the filter’s high sediment- holding capacity and allows it to effectively remove colloidal and dissolved iron.
The replacement filter contains silver in its active ionic form. - AQUAPHOR Crystal KH - FilterSpecial Price €18.00 €14.40 Regular Price €23.00
Replacement filter for drinking water.
The filter fits Crystal H / Crystal H-B.
KH is a softening filter and removes calcium in water and gives pure clean drinking water.
The filter can also be used separately with a single water filter head.
The filter is easy to replace and should be changed every 6 months or after 6000 liters to avoid the formation of bacteria in the filter.
KH - Softening filter with ion exchange that can be regenerated (see more in manual).
KH is an ion-exchange filter cartridge for the Aquaphor Crystal modular filter series.
The cartridge is the softening stage of the Crystal H / Crystal H-B Water System.
- Reduces limescale build-up in hard water
- Ion-exchange technology replaces calcium with sodium ions
- Filter life depends on water hardness
- The filter cartridge can be regenerated
- Pre-filter is recommended
- AQUAPHOR Crystal K7 - FilterSpecial Price €15.00 €12.00 Regular Price €19.00
Replacement filter for drinking water.
The filter fits Crystal H / Crystal H-B.
K7 - 0.8µm very fine filtration activated carbon filter that filtrates ocher, heavy metals, pollutants and more.
The filter can also be used separately with a single water filter head.
The filter is easy to replace and should be changed every 6 months or after 6000 liters to avoid the formation of bacteria in the filter.
This Cartridge does not remove lime.This replacement filter uses an ultra-dense CarbFiber Block made from powdered activated coconut shell carbon. It removes the residual concentrations of organic contaminants and heavy metals. It filters particles down to 0.8 micron in size.
Modified Aqualen fibers distribute the water flow in the ultra-dense filter medium which provides optimal purification.
The replacement filter contains silver in its active ionic form. - AQUAPHOR Crystal K7B - FilterSpecial Price €51.00 €40.80 Regular Price €64.00
Replacement filter for drinking water.
The filter fits Crystal H / Crystal H-B.
K7B - 0.1 microm microfilter removes 99.9% of bacteria and organic substances, heavy metals and particles down to 0.1 µm.
The filter can also be used separately with a single water filter head.
The filter is easy to replace and should be changed every 6 months or after 6000 liters to avoid the formation of bacteria in the filter.
A hollow fiber membrane installed at the entrance of the module removes particles as small as 0.1 micron and provides 99.99% protection from bacteria.
This replacement filter uses an ultra- dense CarbFiber Block made from powdered activated coconut shell carbon. It removes the residual concentrations of organic contaminants and heavy metals. It filters particles down to 0.8 micron in size.
Modified Aqualen fibers distribute the water flow in the ultra-dense filter medium, resulting in the best purification
The replacement filter contains silver in its active ionic form. - AQUAPHOR Crystal K7BM - FilterSpecial Price €61.00 €48.80 Regular Price €77.00
Replacement filter cartridge for reverse osmosis system Crystal RO-202sc.
K7BM is a fusion with the best from K7B and K7M.
K7BM removes bacteria efficiently and adds important minerals to the water.The filter catridge should be replaced every 6 months to prevent bacteria build-up in the filter.
- Replacementfilter - AQUAPHOR Crystal H€53.00 €42.40
This replacement filter set is developed for the AQUAPHOR Crystal H water filter. It ensures stable performance and clean, great-tasting drinking water directly from the tap.
The water filter reduces unwanted substances and improves both taste and water quality. It is suitable for daily household use with a focus on safe and filtered drinking water.
Contents and function
- 1 x K3 filter
Pre-filtration of sediment, rust and mechanical impurities. - 1 x KH filter
Reduces chlorine and organic substances. Improves taste and odor. - 1 x K7 filter
Fine filtration. Removes micro-contaminants and ensures high hygiene.
Replacement interval
- K3, KH and K7 should be replaced at least once a year
- Or after 6,000 liters, whichever comes first
With this replacement set, you keep your AQUAPHOR Crystal H in top condition.
You get clean, safe and great-tasting drinking water every day. - 1 x K3 filter
Water in the body - How much water should you drink daily?
Our body consists of approx. 60% water – the water content must also be maintained and therefore it is important for us humans to consume a given amount of drinking water on a daily basis.
How many liters of water should you drink? It's a relatively simple question, but the answer is not necessarily that simple. Most experts in the field agree that you should consume a minimum of 1 ½ - 2 liters daily, while others say that you are not harmed by 3-4 liters. The recommendations also depend on your activity level – the more active you are, the more water you should drink to maintain the water balance in the body. Water intake also depends on body weight. If you weigh 50 kg, you don't necessarily need to drink as much water as someone who weighs 80 kg.
Bacteria and other substances in drinking water
We hear more and more often in the media that there are bacteria and other substances in our drinking water. Some measurements are much higher than permitted and here residents in the affected areas are asked to boil their drinking water before consuming it. We expect the drinking water that comes out of the tap at home to be completely purified and free of, among other things, bacteria – which is often the case. When things do go wrong, it's nice to have an installation that can remedy these problems, so that you don't feel it when they finally occur.
Filter-Online has several products that are approved for drinking water filtration and thus the task is adult when it comes to filtering in your home, caravan or holiday home.
These can be drinking bottles that are easy to take with you when you are on a trip, reverse osmosis to place under the sink to clean the water of bacteria or filter jugs with replaceable filters, which absorb e.g. iron lead, bad smell and not least softens the water. Many of our customers take water from the tap and run it through a filter jug to soften the water before pouring it into their coffee machine - that way you have an affordable solution to softening water and that way you reduce the amount of lime that comes through the coffee machine.
Crystal drinking water filtration from AQUAPHOR
Crystal water filters are the perfect solution for removing bacteria, heavy metals, ocher and many more unnecessary substances in the water. At the same time, the sets have a cartridge (KH) that softens the water and thus reduces limescale. The sets are quite compact and fit easily under the sink in the kitchen and are then connected to the tap. The matching filter cartridges are quite easy to replace. It is done with a simple click and then the cartridge is turned. The new cartridge is then easily mounted. The set has become incredibly popular among campers and holiday home owners - precisely because it is so compact and easy to install and operate. It gives you optimal drinking water, regardless of where you have installed it.























