Compact Whole-Home Water Softening with Iron Reduction
A high-efficiency metered water softener designed to reduce hardness and dissolved iron while keeping salt use, footprint and day-to-day maintenance under control.
- Up to 30% lower salt use than conventional alternatives
- Softens hard water and reduces dissolved iron
- 15 litres of fine-mesh ion-exchange resin
- 7-year manufacturer warranty
Why Choose the Aquaphor S550?
Lower Salt Use
Its efficient tank design and fine-mesh resin help reduce salt demand during regeneration.
Softening + Iron Reduction
Designed to treat hardness minerals and reduce dissolved iron within one compact system.
Service Flow
Specified at 22.7 litres per minute at a 1 bar pressure drop for everyday household use.
Fine-Mesh Resin
Uses a compact high-efficiency resin bed designed for long service life and efficient regeneration.
Reduce Limescale Throughout the Home
The S550 targets the calcium and magnesium hardness minerals responsible for limescale. Once installed on the incoming mains supply, it provides softened water throughout the property.
That can help reduce scale deposits around showers and taps while also protecting appliances and hot-water equipment from ongoing hardness build-up.
- Helps protect boilers and hot-water systems
- Reduces scale in kettles and household appliances
- Less visible scale around taps and shower fittings
- Softened water delivered across the home
Designed for Hard Water with Dissolved Iron
The S550 combines ion-exchange softening with the ability to reduce dissolved iron. Aquaphor's technical specification rates maximum ferrous iron reduction at 10 mg/L, subject to the incoming water chemistry and installation conditions.
Hardness Reduction
Reduces dissolved calcium and magnesium responsible for hard-water scale.
Iron Reduction
Rated for ferrous iron reduction up to 10 mg/L under specified operating conditions.
Metered Regeneration
The controller regenerates according to water use rather than relying on a simple fixed-time cycle.
Lower Running Demand Without Sacrificing Performance
Aquaphor combines a compact tank design, fine-mesh ion-exchange resin and its Dual Core valve architecture to improve regeneration efficiency and reduce unnecessary salt use.
Check the Installation Space Before You Order
The S550 is designed to provide whole-home treatment from a relatively compact cabinet. Allow suitable space for plumbing connections, the drain line, electrical supply and access for filling the salt compartment.
What the S550 Needs
Incoming Mains Supply
The softener is normally installed on the incoming water supply so softened water can serve the property.
Drain Connection
A suitable drain is required for regeneration discharge. The manual specifies a minimum 16mm / 5/8-inch drain line.
Electrical Supply
The metered control system uses a 12 VAC supply, so a suitable nearby power point is required.
Operating Pressure
The manufacturer specifies an operating water pressure range of approximately 1.4 to 7 bar.
Temperature Range
Designed for water and ambient temperatures between approximately 5°C and 38°C.
Access for Salt
Leave sufficient access around the cabinet for routine salt replenishment and servicing.
Aquaphor S550 Specifications
| System Type | Metered whole-home water softener with iron reduction |
|---|---|
| Maximum Compensated Hardness | 1200 mg/L |
| Maximum Ferrous Iron Reduction | 10 mg/L |
| Minimum pH | 6 |
| Operating Pressure | 1.4–7 bar |
| Operating Temperature | 5°C–38°C |
| Service Flow Rate | 22.7 L/min at approximately 1 bar pressure drop |
| Nominal / Maximum Flow | Approx. 23 / 35 L/min |
| Maximum Regeneration Drain Flow | 9.1 L/min |
| Controller | Metered |
| Electrical Supply | 12 VAC, 50/60 Hz |
| Plumbing Connections | 1" male NPT |
| Minimum Drain Line | 16mm / 5/8" |
| Fine-Mesh Resin | 15 litres |
| Dimensions | Approx. 322 × 554 × 432mm |
| Gross Weight | Approx. 35kg |
| Warranty | 7-year manufacturer warranty |
Official Aquaphor S550 Manual
View the manufacturer documentation for installation, programming, plumbing connections, regeneration and maintenance.
Aquaphor S550 FAQs
Does the Aquaphor S550 only soften water?
No. The S550 is designed to reduce hardness and dissolved ferrous iron, making it a two-in-one treatment system for suitable incoming water supplies.
How much iron can the S550 reduce?
Aquaphor's technical specification lists maximum ferrous iron reduction at 10 mg/L. Actual suitability depends on the complete incoming water analysis, including pH and other contaminants.
Is the S550 efficient with salt?
Yes. Aquaphor states that its tank design and fine-mesh resin allow the system to use up to 30% less salt than conventional water softener designs.
Does the S550 need electricity?
Yes. The metered controller uses a 12 VAC power supply.
What water pressure does the S550 require?
The manufacturer specifies an operating range of approximately 1.4 to 7 bar.
How long is the manufacturer warranty?
The Aquaphor S550 is supplied with a 7-year manufacturer warranty.
Need Help Choosing the Right Water Softener?
Our technical team can help you check household size, water hardness, flow requirements and installation space before you order.
Contact Support Team