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ALFILTRA DUPLEX-PRO-PLUS 1.5" water softener

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€6,490.00
incl. VAT excl. shipping costs
Available - Delivery between 2/18/25 and 2/19/25

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

400


800

+€1,300.00

1000

+€1,800.00

1200

+€2,500.00

1500

+€3,500.00

Your advantages only with us

  • Excellent expertise for 20 years
  • 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

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.

DUPLEX-PRO-PLUS 1.5" water softener

Two-column water softening system for professional use in large residential complexes or in industry with 2 CLACK control valves and 1.5" connection , removes limescale (calcium and magnesium) verifiably

Duplex Pro Plus water softener with CLACK control valve and 1.5" water connection

Fully automatic, two-column water softening system with separate salt container. With two electronic, water meter-controlled control valves Clack WS1 Cl and three-way motor valve. Ideal for apartment buildings, hotels or industrial applications.

The highlights:

  • 1.5" water connection
  • Safety float valve to protect against overflow of the salt container
  • Glass fiber reinforced quality pressure tanks up to 16 bar
  • Eco-Inject system for optimal capacity utilization
  • High performance ion exchange resin, max. capacity per column please select above
  • Optimal utilization of plant capacity without interruption of regeneration

Technical details:

  • Power connection: 230 V, 50 Hz, 15 W
  • Water connection: 1.25"
  • operating pressure 2.2 - 6 bar
  • operating temperature 5-40 °C

Scope of delivery complete 2-column water softening system consisting of:

  • 2 pressure tanks with high-performance ion exchange resin for self-filling
  • 2 control valves Clack WS1.25 and 3-way motor valve
  • PVC piping
  • supporting gravel for optimal resin yield
  • salt container with safety float
  • without connecting parts (see accessories) and without waste water hose.

Please note that the illustration may differ from the actual appearance of the system. Depending on the capacity, larger pressure tanks are also installed. Please refer to the technical data sheet for the exact dimensions.

Clack LogoEco Inject System

Note: This system was renamed from FILTRASOFT Duplex-Pro-Plus to ALFILTRA Duplex-Pro-Plus in May 2020. Nothing has changed about the system itself.


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 selected 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 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



We recommend connecting your softening system to the mains using flexible hoses. These ensure that you can position the system freely.

We recommend integrating your system into the pipe network with this connection fitting. The fitting has a bypass function, so if a malfunction occurs, the water supply does not have to be interrupted.

This system is delivered without connecting parts. We recommend that you install the system into the pipe network using one of these connection sets.


Connection set 1.5'' with intersection (Duplex-Pro-Plus) 200 cm
Connection set 1.5'' with intersection (Duplex-Pro-Plus) 200 cm
€661.00
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.



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