Anti-Scale Water Filter - Two-stage Protection for Washing Machine & Dishwasher (3/4”)
The USTM WFST water filter is specially developed to protect washing machines and dishwashers from limescale and harmful minerals that cause damage to household appliances. Thanks to the two-stage filtration this filter reduces the formation of stubborn limescale deposits, keeping your appliances working more efficiently and lasting significantly longer.
This anti-limescale filter is ideal for households with hard water, where limescale builds up faster on heating elements, spray arms, hoses and valves. With the USTM WFST, you avoid unnecessary repairs and extend the life of your washing machine or dishwasher.
Key features anti-limescale water filter
✔ Two-stage filtration against scale formation
The filter uses polyphosphate crystals which neutralise calcium and magnesium ions. This prevents limescale from sticking to parts of your appliance. This prevents deposits, blockages and heat loss.
✔ Protects washing machine & dishwasher
Suitable for:
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Washing machines
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Dishwashers
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Appliances with standard 3/4″ water connection
By preventing limescale build-up, energy consumption remains lower and the appliance stops wearing out faster.
✔ Easy installation thanks to 3/4” connection
The filter is fitted with two standard threaded connections:
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Internal thread on one side
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External thread on the other hand
You screw the filter directly between the water supply hose and the tap valve or between the hose and the machine. Tools are usually not needed.
✔ Reusable filter housing with refillable contents
The polyphosphate filling can:
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Being topped up ✔
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Or be replaced with a new cartridge ✔
This makes the filter environmentally friendly and economical to use.
Technical specifications water filter for washing machine and dishwasher
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Type: USTM WFST Anti-scaling filter
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Usage: Washing machine, dishwasher
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Connection: 3/4″ female thread + male thread
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Two-stage filtration: polyphosphate + mechanical filtration
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Bed quantity: 50% of filter volume
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Length: 16 cm
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Diameter: 6 cm
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Material padding: Polyphosphate crystals
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Application: Protection against limescale and sediment build-up
Advantages of the water filter for washing machine and dishwasher
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Extended life of your washing machine and dishwasher
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Reduced risk of malfunctions due to limescale
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Lower energy costs (heating elements stay clean)
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Less detergent needed with soft water
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Easy to install without a specialist
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Reusable filter housing with refill option
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Ideal for homes with hard water

Why is an anti-calcium water filter for washing machine and dishwasher so important?
Hard water contains high concentrations of calcium and magnesium, which turn into calcium carbonate (lime). This causes:
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Blockage of pipes and valves
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Persistent white deposits
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Longer durations
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Higher energy bills
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Faster wear of parts
The USTM WFST effectively prevents these problems.
Easy maintenance and long service life
The anti-calcium water filter is designed with ease of use in mind. Once the polyphosphate refill is exhausted, you can easily refill it or replace it with a new filter. This means you don't have to buy a completely new filter each time, which is both cost-saving and environmentally friendly. The filter housing itself will last for years if maintained correctly.
In addition, the filter ensures that water is evenly filtered before it flows into the machine. This prevents uneven calcification, which not only protects the appliance, but also contributes to constant washing and rinsing quality. For families with children or households with heavy use of washing and dishwashing machines, this is an essential investment.
Versatile application for washing machine and dishwasher
The filter is compatible with almost all standard washing and dishwashing machines with a 3/4-inch connection. This makes it a versatile solution for any household. Whether you have an older machine or a new model, anti-calcium fits easily between the supply hose and the machine, providing instant protection against limescale and sediment.
With our water filter, you enjoy more efficient operation of appliances, lower energy costs, less maintenance and longer service life of your household appliances. It is a small investment that brings big benefits to your daily household routine.

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