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ALFILTRA DUPLEX water softening system

 (42)

€1,499.00
€1,199.20
incl. VAT excl. shipping costs
Available - Delivery between 12/12/24 and 12/13/24

Connection parts and assembly service

Please select whether you would like to order the system without connecting parts, including connecting parts or in a carefree package including assembly.

The installation fee includes the installation of a connection block, the connection to the waste water, the commissioning of a basic water softening system, travel costs and the following materials: Two reduction nipples or transition pieces from the existing pipe system to the connection block.

More information
ohne

inkl. Anschluss-Set und Montageservice (Sorglospaket)

+€788.10

Capacity in m³ x °dH

The capacity depends on your water hardness and your water consumption. You can determine the capacity using our capacity calculator or use this rule of thumb:

water hardness rule of thumb
Medium hard water (8–14 °dH) number of people x 7.5
Hard water (14–21 °dH) number of people x 10
Very hard water (over 21 °dH) number of people x 12.5

Example (4 people with water hardness 20): 4 x 10 = 40
20 (1-3 Pers.)

40 (1-6 Pers.)

+€80.00

60 (1-9 Pers.)

+€159.99

80 (bis 19 Pers.)

+€240.00

120 (bis 35 Pers.)

+€440.00

180 (bis 45 Pers.)

+€760.00

240 (bis 65 Pers.)

+€880.00

Advice

Your advantages only with us

  • Excellent expertise
  • Highest quality in every component
  • Fair price-performance ratio
  • In-house, trained fitters
  • No risk through purchase on account (from 500 €)
  • Free shipping in Germany (from 250 €)
Advice

Contact

0725 1936760

WhatsApp
You can reach our customer service from Monday to Thursday from 9 a.m. to 5 p.m. and Friday from 9 a.m. to 3 p.m.
contact form
Request a quote
Frequently Asked Questions (FAQ)

DUPLEX water softening system

  • Two-column professional water softening system for single-family and multi-family homes
  • Two softening columns for uninterrupted soft water supply and optimal capacity utilization
  • ECO-INJECT economy salting saves up to 50% salt with almost the same capacity
  • Freely selectable capacity depending on your water hardness and consumption
  • Connections: 1" threaded connector made of shatter-proof plastic in professional quality

Our double column water softener DUPLEX is ideal for very hard water and/or high water consumption

This fully automatic, two-column water softening system with electronic, water quantity-controlled control valve CLACK WS1-TT is simply installed in front of your existing domestic water network. The system uses the tried and tested ion exchange process and removes the hardness-forming substances and thus the limescale completely from your tap water if desired. In contrast to our basic softeners, the duplex systems have a second softening column. This enables an uninterrupted soft water supply, as the second column simply steps in during the regeneration phase of the first column. This is particularly advantageous in apartment buildings. An integrated safety float valve protects the salt container from overflow and the glass fiber reinforced pressure tank can withstand pressure surges of up to 16 bar. Thanks to our sophisticated ECO-INJECT SYSTEM, the system saves up to 50% salt and operates at almost maximum capacity.

Highlights

  • NEW: Electronically quantity-controlled CLACK WS1-TT
  • Two softening columns for uninterrupted soft water supply and optimal capacity utilization
  • ECO-INJECT economy salting saves up to 50% salt with almost the same capacity
  • freely selectable capacity depending on your water hardness and consumption (see above)
  • Connections: 1" threaded connector made of shatter-proof plastic in professional quality
  • Residual hardness continuously adjustable via optionally available connection block with blending device
  • Glass fibre reinforced quality pressure tanks and separate salt tank
  • Plug & Play - The system comes to your home already pre-programmed
  • built according to DIN-1988, NFS-certified exchange resin
  • 2 years warranty (up to 7 years warranty with annual maintenance)

Scope of delivery

  • Ready-to-use double water softening system consisting of two pressure tanks filled with special high-performance ion exchange resin and the special control valve CLACK WS1-TT
  • separate brine tank (the separate design allows for better room layout)
  • Safety float valve - Protects against overflow of the system
  • Operating and programming instructions

Please note: This system is supplied without connecting parts and without a waste water hose. You can find these above under accessories. There you will also find an assembly service if you require this.

If you would like to know more about how water softening works and the benefits it offers, please visit our water softening information pages .

Installation and maintenance service for water softening systems

Alfiltra assembly team

If you wish, we can install your water softener in your apartment building at a fixed price within Germany. Thanks to our 4 locations, we can offer the installation service including travel at a reasonable fixed price.

This is how it works:

  • You order the desired system including installation service in our online shop, by phone or by email
  • To eliminate any possible ambiguities, please send us a few photos of the installation location in advance
  • We will contact you by phone to arrange an appointment
  • Our technician will professionally install the system at your premises or in your property
 

The Alfiltra quality promise

Highest quality

  • Our systems are Made in Germany from our own production
  • Carefully selected materials for durability and reliability
  • Up to 7 years warranty on our systems with annual maintenance

Maximum security

  • Pay conveniently and securely by invoice, without financial risk
  • Positive customer reviews confirm the high level of satisfaction
  • Fast and uncomplicated help if something is not to your satisfaction

Competent team

  • Available throughout Germany for fast and competent service
  • 4 locations guarantee personal support and fast response times
  • If you have any questions or concerns, our support team is always available

Installation and maintenance service for water softening systems

Alfiltra assembly team

If you wish, we can install your water softener in your company at a fixed price within Germany. Thanks to our 4 locations, we can offer the installation service including travel at a reasonable fixed price.

This is how it works:

  • You order the desired system including installation service in our online shop, by phone or by email
  • To eliminate any possible ambiguities, please send us a few photos of the installation location in advance
  • We will contact you by phone to arrange an appointment
  • Our technician will professionally install the system at the desired location

Installation and maintenance service for water softening systems

Alfiltra assembly team

If you wish, we can install your water softener at a fixed price within Germany. Thanks to our 4 locations, we can offer the installation service including travel at a reasonable fixed price.

This is how it works:

  • You order the desired system including installation service in our online shop, by phone or by email
  • To eliminate any possible ambiguities, please send us a few photos of the installation location in advance
  • We will contact you by phone to arrange an appointment
  • Our technician will professionally install the system for you

 4.9 from 5 Stars (42 Reviews)

5 Stars (37)
4 Stars (4)
3 Stars (1)
2 Stars (0)
1 Star (0)

Customer Photos

Duplex-Pro-120 water softening system in an apartment building
Duplex-40 decalcification system
Duplex-20-water softener-single-family house
Duplex 40 water softener with filter
Before-Duplex20
Duplex 120 water softening system in an apartment building
Double water softening system in a single-family home
Duplex 20 water softening system
Double water softener Duplex 20
Double decalcifier for the water pipe
Duplex 20 water softening system in a single-family home
Duplex decalcification system in a single-family home

Latest Reviews

5.00
Jutta F.
Oct 7, 2024
Variant: Duplex 60 water softener carefree package
Water hardness from 28 to 4 ....Top
5.00
WEG v.
Aug 29, 2024
Variant: Duplex 60 water softener carefree package
I am very satisfied with the device, it works perfectly...
I am very satisfied with the device, it works perfectly-
5.00
K.
Aug 16, 2024
Variant: Duplex 80 WS1-TT water softener
Everything fine!
5.00
t***********@d*****.de
May 27, 2024
Variant: Duplex 60 water softener carefree package
The system runs without problems. It's OK.
5.00
Raul I.
May 13, 2024
Variant: Duplex 180 WS1-TT water softener
Very satisfied.
5.00
Karl
May 9, 2024
Variant: Duplex 40 WS1-TT water softening system / decalcification system
Very good product, easy to use.
5.00
Philip T.
Apr 1, 2024
Variant: Duplex 20 water softener carefree package
Works exactly as I wanted: from 19 dH to 5 ...
Works exactly as I wanted: from 19 dH to 5 dH.
5.00
Jörg S.
Mar 17, 2024
Variant: Duplex 40 WS1-TT water softening system / decalcification system
Everything was perfect, thank you very much ????
5.00
Stefan S.
Mar 2, 2024
Variant: Duplex 40 water softener in a carefree package including installation service
The system is working perfectly so far. Everything else will...
The system is working perfectly so far. Everything else will become clear over time.
show all Reviews

A backwash filter should generally be present in every installation. This filters sediments and solids from the drinking water. If you don't have a pre-filter yet, please order one at the same time.
Primus F backwash filter for house connection 1''
Primus F backwash filter for house connection 1''
€189.00
View product
incl. VAT excl. shipping costs
Available

Primus FK backwash filter 1'' with pressure reducer
Primus FK backwash filter 1'' with pressure reducer
€199.00
View product
incl. VAT excl. shipping costs
Available

This water treatment system works with the ion exchange process. This means that salt is required to operate. How much salt the system needs depends on the water consumption and water hardness. You can calculate your salt consumption using our online calculator.
Salt tablets for water softeners and ion exchangers 5x 25 kg bags
Salt tablets for water softeners and ion exchangers 5x 25 kg bags
€64.00 (€0.51 / kg)
View product
incl. VAT excl. shipping costs
Available

This special solution of preservative and demineralized water ensures that the resin of your ion exchanger is refreshed. Use once a year or after the system has been shut down for a long time.
RESIN CLEAN resin cleaner for water softening systems 1000 ml
RESIN CLEAN resin cleaner for water softening systems 1000 ml
€19.90 (€19.90 / l)
View product
incl. VAT excl. shipping costs
Available

RESIN CLEAN resin cleaner for water softening systems 5000ml
RESIN CLEAN resin cleaner for water softening systems 5000ml
€89.00 (€17.80 / l)
View product
incl. VAT excl. shipping costs
Available

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Do you have questions?

0725 1936760
contact form
Request a quote

Ask a question about this product

Product: DUPLEX water softening system

144 upvotes 1 answers
Answer:
0
Yes, we would be happy to offer you a suitable maintenance contract.

Product: DUPLEX water softening system

1 upvotes 1 answers
Answer:
0

Yes, our duplex systems are perfect for such applications.

The duplex can manage apartment buildings with irregular water consumption, large garden irrigation, pools, etc. without any problems. However, it depends on the right capacity.

You can either use our calculator or we will be happy to make you a suitable offer and find the right system for you.

Product: DUPLEX water softening system

0 upvotes 1 answers
Answer:
0

The DUPLEX softening system is designed so that the wastewater resulting from regeneration is drained away efficiently, even without the use of an additional pump. Thanks to the plant's advanced design and efficient use of existing water pressure, it is able to pump wastewater to a height of up to 2.5 meters.

This capability allows for flexible installation of the system as the wastewater hose can be connected directly to a higher wastewater pipe without the need for additional pumping devices. This represents a significant advantage by expanding installation options while keeping operating costs low as no additional energy is required for a wastewater pump.

However, please use an open system such as a funnel for the wastewater connection (the hose must be attached to prevent it from slipping out).

Product: DUPLEX water softening system

0 upvotes 1 answers
Answer:
0
There are a few requirements that must be met so that the resin is not damaged (for example the correct pH value). For this reason, the systems are generally only suitable for drinking water. However, the exact values are important and there are options to adjust the values beforehand if desired. In such cases, we would be happy to make you an individual offer.

Product: DUPLEX water softening system

0 upvotes 1 answers
Answer:
0
This is usually 1 - 1.5 meters long. If necessary, we can also extend this individually, but it should not exceed a length of 3 meters.

Product: DUPLEX water softening system

0 upvotes 1 answers
Answer:
0

For a 4-person household with a water hardness of 18-20 °dH, the basic system is generally an efficient choice, especially if there are no large consumers such as a pool. The Basic 40 offers an optimal solution for your needs as it is specifically tailored to water softening in households.

However, it is important to remember that the choice of investment should also take future needs into account. If there is a possibility that additional people could be added to your household, it is advisable to consider a system with a higher capacity to ensure efficient water softening in the long term.

In short, the Basic 40 is a solid and cost-effective choice for your current needs, but the decision should also take potential future needs into account.

Product: DUPLEX water softening system

0 upvotes 1 answers
Answer:
0
With the Duplex 20, around 1 bag of salt (25 kg) fits into the salt container (Duplex 40, 60 and 80: 3 bags, Duplex 120 and 180: 4 bags). You will also find this information clearly presented in the technical data sheet for the respective system.
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