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- Water filters
- Reverse osmosis
- Reverse osmosis systems (filters)
- Osmosis filters
- Replacement cartridges and sets for RO10 filters
- Replacement cartridges and sets for RO3 filters
- Replacement cartridges and sets for RO4 filters
- Replacement cartridges and sets for RO5 filters
- Replacement cartridges and sets for RO6 filters
- Replacement cartridges and sets for RO7 filters
- Replacement cartridges and sets for RO8 filters
- Replacement cartridges and sets for RO9 filters
- Reverse osmosis cartridge sets
- Pre-filters for reverse osmosis
- Inline cartridges for reverse osmosis
- RO mineralizers and remineralization cartridges
- Carbon cartridges for reverse osmosis
- Mechanical cartridges for reverse osmosis
- Osmotic membranes
- 50 GPD reverse osmosis membranes
- 75 GPD reverse osmosis membranes
- 100 GPD reverse osmosis membranes
- 150 GPD reverse osmosis membranes
- 400 GPD reverse osmosis membranes
- 600 GPD reverse osmosis membranes
- 2400 GPD reverse osmosis membranes
- 300 GPD reverse osmosis membranes
- 700 GPD reverse osmosis membranes
- 200 GPD reverse osmosis membranes
- 800 GPD reverse osmosis membranes
- Parts and accessories for reverse osmosis
- Water pumps
- Pressure tanks for osmosis
- RO faucets and taps
- Quick connectors for reverse osmosis
- Hoses, filter tubes
- Water valves
- Flow restrictors
- Water connections
- Membrane housings and RO filter housings
- RO filter keys
- RO filter holders
- Mounting plates for osmosis
- Seals for RO systems
- Water leak sensors
- Pressure gauges for reverse osmosis
- RO system disinfection
- Accessories for RO fittings and tubing
- Filter cartridges
- Carbon
- Antibacterial
- Filter jug cartridges
- Linear
- Mechanical
- Deionizing
- Softening
- Insert sets
- Capillary membranes
- Replacement cartridges for filter bottles
- Replacement shower filter cartridges
- Cartridges for tap-mounted and countertop filters
- Under-sink filter cartridges
- Big Blue 10-inch cartridges
- Big Blue 20-inch cartridges
- Empty refillable cartridges and canisters
- Cartridges for Cintropur filters
- Cartridges for household appliance filters
- Nitrate removal cartridges
- Water softeners and iron removers
- Water softeners
- Salt-free water treatment — technology comparison
- Multifunction water treatment systems
- Iron removers
- Whole-house carbon filter systems
- Nitrate removal systems
- Water pH correction systems
- Electronic anti-scale systems
- Filter media
- Salt for softener
- Parts and accessories for water treatment stations
- Water demineralization
- UV systems for water disinfection
- Testers, water meters
- Pool and Spa
- Aquarium filters
- Drinking water devices
- Coffee machines
- Breathalysers
- Accessories, parts, and others
- Batteries, faucets, spouts
- Filters and spare parts for water ionizers
- Hydraulic articles
- Septic tank products
- Descaling liquids
- Thermal mugs and bottles
- Others
- Coffee machine descaling tablets
- Condensate neutralisers for boilers
- Leak protection systems and shut-off valves
- Connection kits for refrigerators and ice makers
- Parts for inline filter housings and filters
- Technical and service items
- Coffee machine cleaning tablets
- Descaling powders and sachets
- Rainwater treatment products
- Compost and slurry treatment products
- Pond treatment products
- Water problems
- Hard water and limescale
- Iron and rust in water
- Sand and sediment in water
- Chlorine and bad water taste
- Bad water smell
- Bacteria in water
- Cloudy water
- Well water — testing and treatment selection
- High TDS in water
- Dry skin after bathing
- Dry and dull hair after washing
- Stains on shower glass and fittings
- Limescale in the washing machine
- Limescale in coffee machine and kettle
- Rough laundry and stiff towels
- Spots on dishes after dishwasher
- Clogging of aerators
- Limescale in boiler and water heater
- Metallic taste of water
- Yellow tap water
- Brown water after opening the tap
- Black sediment in water
- Manganese in water
- Ammonium in water
- Nitrates and nitrites in water
- Water for baby and child
- Microplastics in water
- Pesticides, medicines and organic compounds
- PFAS in drinking water
- Service & installation
- B2B
BETTER WATER STARTS HERE
Under-sink water filters
Reverse osmosis or filtration without RO.
Compare kitchen water filtration technologies. Choose reverse osmosis or a non-RO filter, including a system with a UF ultrafiltration membrane. These solutions are intended for installation under the sink.
Compare optionsChoose an under-sink filtration technology
Start with the filtration result you need, then compare individual models.
Under-sink reverse osmosis filters
Complete RO systems for installation in a kitchen cabinet: with or without a tank and with or without a mineralizer. Match output, dimensions and equipment to your kitchen.
Explore options
Under-sink filters without reverse osmosis
Complete kitchen filters without an RO membrane. Match carbon, sediment or ultrafiltration stages to your water and the taste and odour improvement you need.
Explore options
What to check before choosing
Compare each model’s documented contaminant reduction, flow, cabinet space, connections and replacement costs. For RO, also check the concentrate drain, required pressure and any pump power supply. A mineralizer is an equipment option, not a requirement for an under-sink RO filter.