AQUAPHOR S550 contains 15 L of chlorine resistant ion exchange resin. It is a popular solution for hard water treatment — both in cottages and in city apartments. It is an ultra compact system, so there's no need for a separate utility space. Moreover, it perfectly fits under the kitchen sink.
Salt savings up to 60%
Thanks to the unique tank design and extra-fine ion-exchange resin, salt efficiency is maximized.
2-in-1: water softening & iron removal
Removal of high concentration of Fe (up to 15 mg/L concentration in water) and hardness salts.
Exceptionally small water usage for regeneration
The innovative, patented Dual Core Valves of the AQUAPHOR softener assure long-term trouble-free performance whilst wasting minimal amount of water.
10-year warranty for the main parts
The high-strength thick wall made of homogeneous glass-filled composite will serve over 10 years, while classic columns typically serve less than 5 years.
In addition to low salt consumption of the system, ion-exchange resin lasts 10 times longer that in typical water softeners.
Operates efficiently even at very low tap pressure
Fully recyclable body and tank
Aquaphor S550 suits for
• Simultaneous removal of iron, manganese and hardness
• Efficient operation even at very low tap pressure
• Optional KDF pre-filtration disc for hydrogen sulfide removal
Aquaphor S550 Technical specification
Maximum Capacity, gram
Maximum Compensated Hardness, mg/L
Maximum Ferrous Iron Reduction, ppm*
Minimum pH, standard units
Water & Ambient Temperature Minimum-Maximum, °C
Water Pressure Minimum - Maximum, bar
1,4 - 7
Maximum Flow Rate to Drain During Regeneration, L/min**
Service Flow Rate (@1.0 bar) drop, L/min***
Pressure Drop (@22.7 L/min), bar
Capacity in HE mode, kg salt/gram hardness
0.6 / 392
HE salt saving mode, min/l
17 / 49
Capacity in HC mode, kg salt/gram hardness
1.8 / 821
High capacity HC mode, min/l
23 / 63
Maximum capacity in AU mode, kg/g
3.3 / 1 044
AU maximum capacity mode, min/l
30 / 75
intelligent, by water meter
12VAC, 50/60 Hz, 0.015 kW-hr
Plumbing Connections (NPT)
1 inch male (MNPT)
Minimum Drain Line ID, cm)
Media Tank Size - (ID x Height), cm
26.7 x 27.7
32.2 x 43.2
Shipping Weight - approx., kg
Fine Mesh Resin, l
Drain Line (Minimum I.D.)
5/8 inch (1.6 cm)
Brine & Rinse total, l/min
Brine Draw, l/min
Use clean white pellet, cube-style, or solar salt.
* Iron reduction to 0.3 ppm or less.
** Flow rate of flow must be verified at the end of the drain line.
***Prolonged operation of a water soſtener at flow rates exceeding 20.8 l/min may compromise performance. Intermittent flow rate must not exceed 35.2 l/min.