BWT WS555 14L Hi-Flow Electronic Water Softener | 22mm Kit | Metered | Large Households
14 Litre Resin Hi-Flow 50 l/min Large Households 22mm Install Kit Included Metered Control Unvented / Megaflow Free BWT Commissioning
The BWT WS555 is the top-of-range hi-flow domestic water softener in the BWT WS series — combining the large 14-litre resin capacity of the WS355 with the 22mm high-flow performance of the WS455. Delivering a peak flow rate of 50 litres per minute and a maximum softened water capacity of 2500 litres between regenerations, the WS555 is the ideal choice for larger households, hard water areas, and high-flow plumbing systems where both flow rate and regeneration frequency are important. It is supplied complete with a 22mm installation kit as standard.
With a 14L resin volume, the WS555 regenerates less often than the WS455 (10L), resulting in lower overall salt and water consumption per period — making it the most efficient hi-flow option for larger households. Like all WS models it uses BWT's metered AMECS demand system, with free @Home commissioning and a 5-year parts / 2-year labour warranty.
💡 BWT WS Range Comparison — At a Glance
WS355: 14L resin, 30 l/min peak, 15mm kit — standard flow, conventional systems. WS455: 10L resin, 50 l/min peak, 22mm kit — hi-flow for modern/unvented systems, smaller resin. WS555: 14L resin, 50 l/min peak, 22mm kit — hi-flow AND large resin capacity, best for larger households or very hard water areas where infrequent regeneration is valued alongside high flow performance.
Key Features
Technical Specifications
| Specification | WS555 Detail |
|---|---|
| Resin Volume | 14 litres |
| Dimensions (H × W × D) | 602mm × 270mm × 480mm |
| Min Flow Rate (Hi-Flo) | 10 l/min |
| Continuous Flow Rate (Hi-Flo) | 30 l/min |
| Peak Flow Rate (Hi-Flo) | 50 l/min |
| Basic Flow (@ 1 bar pressure loss) | 26 l/min |
| Max Pressure | 5 bar |
| Min Pressure | 1.7 bar |
| Max Water Temperature | 49°C |
| Inlet / Outlet Connection | ¾" BSP |
| Drain Connection | ½" tube |
| Installation Kit Included | 22mm stainless steel hoses and valves (Hi-Flow) |
| Salt per Regeneration | 0.6–2.0 kg (min/max) |
| Water per Regeneration | <80 litres |
| Salt Storage | 8kg block / 19kg tablet |
| Max Softened Water Capacity | 2500 litres |
| Electrical Supply | 220V AC / 12V DC |
| Regeneration Type | Metered demand (AMECS) |
| Unit Weight (empty / in service) | 22kg / 50kg |
| Warranty | 5 years parts / 2 years on-site labour |
| Brand | BWT |
Frequently Asked Questions
Who is the WS555 designed for?
The WS555 is ideal for households of 6 or more, properties in very hard water areas (where the resin is exhausted more quickly), and any installation requiring both 22mm high-flow connections and a large resin capacity. The combination of 14L resin and 50 l/min flow makes it the most capable single-cabinet domestic softener in the BWT WS range.
Does the WS555 fit under a kitchen sink?
At 602mm high, 270mm wide and 480mm deep, the WS555 is the same footprint as the WS355 — designed to fit under a standard 600mm-deep kitchen sink cabinet. However, at 22kg empty and 50kg in service, it is a substantial unit, so the floor support beneath a kitchen unit should be confirmed adequate before installation.
Is the WS555 suitable as a commercial unit?
The WS555 is classified as a domestic water softener by BWT, and is described in some sources as "light commercial." It is well-suited to larger domestic properties and small commercial premises such as salon backwashes, small offices, and letting properties with multiple occupants. For heavy commercial or industrial demand, BWT offer dedicated commercial softener ranges.
Original: $1,341.57
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BWT WS555 14L Hi-Flow Electronic Water Softener | 22mm Kit | Metered | Large Households
14 Litre Resin Hi-Flow 50 l/min Large Households 22mm Install Kit Included Metered Control Unvented / Megaflow Free BWT Commissioning
The BWT WS555 is the top-of-range hi-flow domestic water softener in the BWT WS series — combining the large 14-litre resin capacity of the WS355 with the 22mm high-flow performance of the WS455. Delivering a peak flow rate of 50 litres per minute and a maximum softened water capacity of 2500 litres between regenerations, the WS555 is the ideal choice for larger households, hard water areas, and high-flow plumbing systems where both flow rate and regeneration frequency are important. It is supplied complete with a 22mm installation kit as standard.
With a 14L resin volume, the WS555 regenerates less often than the WS455 (10L), resulting in lower overall salt and water consumption per period — making it the most efficient hi-flow option for larger households. Like all WS models it uses BWT's metered AMECS demand system, with free @Home commissioning and a 5-year parts / 2-year labour warranty.
💡 BWT WS Range Comparison — At a Glance
WS355: 14L resin, 30 l/min peak, 15mm kit — standard flow, conventional systems. WS455: 10L resin, 50 l/min peak, 22mm kit — hi-flow for modern/unvented systems, smaller resin. WS555: 14L resin, 50 l/min peak, 22mm kit — hi-flow AND large resin capacity, best for larger households or very hard water areas where infrequent regeneration is valued alongside high flow performance.
Key Features
Technical Specifications
| Specification | WS555 Detail |
|---|---|
| Resin Volume | 14 litres |
| Dimensions (H × W × D) | 602mm × 270mm × 480mm |
| Min Flow Rate (Hi-Flo) | 10 l/min |
| Continuous Flow Rate (Hi-Flo) | 30 l/min |
| Peak Flow Rate (Hi-Flo) | 50 l/min |
| Basic Flow (@ 1 bar pressure loss) | 26 l/min |
| Max Pressure | 5 bar |
| Min Pressure | 1.7 bar |
| Max Water Temperature | 49°C |
| Inlet / Outlet Connection | ¾" BSP |
| Drain Connection | ½" tube |
| Installation Kit Included | 22mm stainless steel hoses and valves (Hi-Flow) |
| Salt per Regeneration | 0.6–2.0 kg (min/max) |
| Water per Regeneration | <80 litres |
| Salt Storage | 8kg block / 19kg tablet |
| Max Softened Water Capacity | 2500 litres |
| Electrical Supply | 220V AC / 12V DC |
| Regeneration Type | Metered demand (AMECS) |
| Unit Weight (empty / in service) | 22kg / 50kg |
| Warranty | 5 years parts / 2 years on-site labour |
| Brand | BWT |
Frequently Asked Questions
Who is the WS555 designed for?
The WS555 is ideal for households of 6 or more, properties in very hard water areas (where the resin is exhausted more quickly), and any installation requiring both 22mm high-flow connections and a large resin capacity. The combination of 14L resin and 50 l/min flow makes it the most capable single-cabinet domestic softener in the BWT WS range.
Does the WS555 fit under a kitchen sink?
At 602mm high, 270mm wide and 480mm deep, the WS555 is the same footprint as the WS355 — designed to fit under a standard 600mm-deep kitchen sink cabinet. However, at 22kg empty and 50kg in service, it is a substantial unit, so the floor support beneath a kitchen unit should be confirmed adequate before installation.
Is the WS555 suitable as a commercial unit?
The WS555 is classified as a domestic water softener by BWT, and is described in some sources as "light commercial." It is well-suited to larger domestic properties and small commercial premises such as salon backwashes, small offices, and letting properties with multiple occupants. For heavy commercial or industrial demand, BWT offer dedicated commercial softener ranges.
Product Information
Product Information
Shipping & Returns
Shipping & Returns
Description
14 Litre Resin Hi-Flow 50 l/min Large Households 22mm Install Kit Included Metered Control Unvented / Megaflow Free BWT Commissioning
The BWT WS555 is the top-of-range hi-flow domestic water softener in the BWT WS series — combining the large 14-litre resin capacity of the WS355 with the 22mm high-flow performance of the WS455. Delivering a peak flow rate of 50 litres per minute and a maximum softened water capacity of 2500 litres between regenerations, the WS555 is the ideal choice for larger households, hard water areas, and high-flow plumbing systems where both flow rate and regeneration frequency are important. It is supplied complete with a 22mm installation kit as standard.
With a 14L resin volume, the WS555 regenerates less often than the WS455 (10L), resulting in lower overall salt and water consumption per period — making it the most efficient hi-flow option for larger households. Like all WS models it uses BWT's metered AMECS demand system, with free @Home commissioning and a 5-year parts / 2-year labour warranty.
💡 BWT WS Range Comparison — At a Glance
WS355: 14L resin, 30 l/min peak, 15mm kit — standard flow, conventional systems. WS455: 10L resin, 50 l/min peak, 22mm kit — hi-flow for modern/unvented systems, smaller resin. WS555: 14L resin, 50 l/min peak, 22mm kit — hi-flow AND large resin capacity, best for larger households or very hard water areas where infrequent regeneration is valued alongside high flow performance.
Key Features
Technical Specifications
| Specification | WS555 Detail |
|---|---|
| Resin Volume | 14 litres |
| Dimensions (H × W × D) | 602mm × 270mm × 480mm |
| Min Flow Rate (Hi-Flo) | 10 l/min |
| Continuous Flow Rate (Hi-Flo) | 30 l/min |
| Peak Flow Rate (Hi-Flo) | 50 l/min |
| Basic Flow (@ 1 bar pressure loss) | 26 l/min |
| Max Pressure | 5 bar |
| Min Pressure | 1.7 bar |
| Max Water Temperature | 49°C |
| Inlet / Outlet Connection | ¾" BSP |
| Drain Connection | ½" tube |
| Installation Kit Included | 22mm stainless steel hoses and valves (Hi-Flow) |
| Salt per Regeneration | 0.6–2.0 kg (min/max) |
| Water per Regeneration | <80 litres |
| Salt Storage | 8kg block / 19kg tablet |
| Max Softened Water Capacity | 2500 litres |
| Electrical Supply | 220V AC / 12V DC |
| Regeneration Type | Metered demand (AMECS) |
| Unit Weight (empty / in service) | 22kg / 50kg |
| Warranty | 5 years parts / 2 years on-site labour |
| Brand | BWT |
Frequently Asked Questions
Who is the WS555 designed for?
The WS555 is ideal for households of 6 or more, properties in very hard water areas (where the resin is exhausted more quickly), and any installation requiring both 22mm high-flow connections and a large resin capacity. The combination of 14L resin and 50 l/min flow makes it the most capable single-cabinet domestic softener in the BWT WS range.
Does the WS555 fit under a kitchen sink?
At 602mm high, 270mm wide and 480mm deep, the WS555 is the same footprint as the WS355 — designed to fit under a standard 600mm-deep kitchen sink cabinet. However, at 22kg empty and 50kg in service, it is a substantial unit, so the floor support beneath a kitchen unit should be confirmed adequate before installation.
Is the WS555 suitable as a commercial unit?
The WS555 is classified as a domestic water softener by BWT, and is described in some sources as "light commercial." It is well-suited to larger domestic properties and small commercial premises such as salon backwashes, small offices, and letting properties with multiple occupants. For heavy commercial or industrial demand, BWT offer dedicated commercial softener ranges.
