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PENTAIR 255 EASY-IQ CR100 is a modern water treatment station designed to protect the entire system. The device combines softening and iron removal thanks to the Crystal Right CR-100 media, which also helps remove manganese and ammonium ions and supports pH correction. The automatic head PENTAIR Autotrol 255 Easy-IQ offers a clear display, diagnostics, andprecise salt dosage adjustment.
PENTAIR 255 EASY-IQ CR100 water treatment station is an advanced device for comprehensive protection of the entire home installation. This water softener and iron remover in one combines effective water treatment with convenient automatic operation. Thanks to the Crystal Right CR-100 media, it reduces water hardness, helps remove iron, manganese and ammonium ions, and also supports pH correction. It is a practical water filter for users who expect reliable performance, a modern control head and real protection of the installation against scale, deposits and contaminants typical of well water and mains water.

PENTAIR 255 EASY-IQ CR100 is a multifunctional water treatment station designed to protect the entire water installation and all devices connected to the system. The device works as a system combining softening and iron removal, helping improve the quality of domestic water throughout the home.
The main task of the station is to eliminate water hardness, i.e. remove calcium and magnesium salts responsible for limescale deposits and boiler scale, especially noticeable under the influence of temperature. At the same time, the Crystal Right CR-100 media supports the reduction of iron, manganese, ammonia and organic compounds.
Thoughtful construction, durable materials and modern automation make the device ensure effective and economical water treatment, while being designed for reliable everyday operation.

The device was designed for users who want to combine effective filtration with ease of use. In practice, this means less sediment in fixtures, better protection of the installation and heating devices, and more comfortable everyday water use.

The heart of the device is the automatic PENTAIR AUTOTROL 255 EASY-IQ control head. It is a modern operating control system that allows the station's performance to be precisely adapted to installation conditions and actual water consumption.
The Crystal Right CR-100 media used in the station is responsible for a wide range of water treatment functions. It is what makes it possible to combine functions that in many installations require several separate devices. As a result, the entire water filtration system remains more compact and convenient to use.


The station has been designed to provide the simplest possible operation while maintaining high efficiency. The automatic control head supervises operating and regeneration cycles, and the user primarily monitors the salt level and basic operating conditions on a daily basis.
For proper installation and use of the device, a mounting area of 30 x 50 cm, access to sewage and a 220 V power supply must be provided. Proper preparation of the installation site facilitates trouble-free operation of the station and correct drainage of backwash water.
This solution can be the central element of a home water treatment system. In many installations it works together with additional devices improving drinking water quality, such as an under-sink water filter, reverse osmosis, an osmotic filter or a reverse osmosis system used directly at the drinking water point.

| Parameter | Value |
|---|---|
| Model | PENTAIR 255 EASY-IQ CR100 |
| Device type | Softening and iron-removal station |
| Media | Crystal Right CR-100 |
| Amount of media | 30 l |
| Total resin tank capacity | 45 dm³ |
| Control head power supply | 220-230 V / 50 Hz |
| Operating pressure | 1.8–8.0 bar |
| Operating temperature | 2–38°C |
| Power consumption | Average 3 W |
| Salt tank capacity | 75 kg |
| Working flow rate | 3.52 m³/h at 1.03 bar pressure drop |
| Backwash | Up to 1.36 m³/h at 1.72 bar |
| Mounting area | 30 x 50 cm |
| Total height / width | 111 / 32 cm |
| Connection height | 93 cm |
| Depth | 50 cm |
The device is used for comprehensive water treatment throughout the entire installation. It combines the function of a water softener and an iron remover, helping reduce hardness, iron, manganese, ammonium ions and deposits forming in the system.
The station is responsible for water softening and supports the removal of iron, manganese and ammonium ions. The Crystal Right CR-100 media also helps with pH correction and filtration of solid particles and suspended matter present in the water.
No. One of the advantages of Crystal Right media is that it does not require aeration, which distinguishes it from some classic iron-removal media.
Regeneration takes place using brine. This solution eliminates the need for heavy chemicals and simplifies the daily operation of the device.
For installation, a 30 x 50 cm area must be prepared. Access to sewage and a 220 V power supply is also required so that the device can operate correctly and carry out regeneration cycles.
The total height is 111 cm, width 32 cm, connection height 93 cm and depth 50 cm. This makes it easier to plan the installation location in a boiler room, utility room or water connection area.
The head offers time-based or volumetric control, several regeneration modes, a color display in 7 languages, a diagnostic menu, a USB-C port, salt dose adjustment in 10 g increments, user alerts, vacation mode and power backup for up to 24 hours.
Yes. This type of device often serves as the basis for whole-house water treatment and can be supplemented with an additional drinking water filter, for example a reverse osmosis filter, an osmotic filter or a reverse osmosis system installed at the kitchen water point.
The most important advantages include: high build quality, a new MAXI housing type, maintenance-free operation, a reliable salt dosing system, a corrosion-resistant housing and an effective combination of softening and iron removal in one device.
PENTAIR 255 EASY-IQ CR100 is a modern water treatment station designed to protect the entire system. The device combines softening and iron removal thanks to the Crystal Right CR-100 media, which also helps remove manganese and ammonium ions and supports pH correction. The automatic head PENTAIR Autotrol 255 Easy-IQ offers a clear display, diagnostics, andprecise salt dosage adjustment.