A1
£599.99
A2
£449.00
K19-H
£359.99

RO System Water Filtrations Comparison

Find the best Waterdrop Water Filter for you
See all models > Understanding Reverse Osmosis > Compare Undersink Reverse Osmosis
Get help choosing. Contact us
Products
A1
A1
A1
WD-A1
A2
WD-A1
K19-H
WD-K19-H
C1H
WD-C1H
C1SL
WD-C1SL
A2G
WD-A2G
K19-HG
WD-K19-HG
M6SL
WD-M6SL
M6HG
WD-M6HG
£599.99
Shop now
A2
A2
A1
WD-A1
A2
WD-A1
K19-H
WD-K19-H
C1H
WD-C1H
C1SL
WD-C1SL
A2G
WD-A2G
K19-HG
WD-K19-HG
M6SL
WD-M6SL
M6HG
WD-M6HG
£449.00
Shop now
K19-H
K19-H
A1
WD-A1
A2
WD-A1
K19-H
WD-K19-H
C1H
WD-C1H
C1SL
WD-C1SL
A2G
WD-A2G
K19-HG
WD-K19-HG
M6SL
WD-M6SL
M6HG
WD-M6HG
£359.99
Shop now
Specs
Pure to Drain Rate
Flow Capacity
100 GPD
100 GPD
75 GPD
Water Capacity Options
5-mode
Customizable Water Capacity
5-mode
Customizable Water Capacity
5-mode
Customizable Water Capacity
Dispensing Option
Ambient Water
Instant Hot Water
Chilled Water
Ambient Water
Instant Hot Water
Chilled Water
Ambient Water
Instant Hot Water
Chilled Water
Water Tank Capacity
6.0L
4.7L
5.0L
Installation
No Installation
No drilling required
No Installation
No drilling required
No Installation
No drilling required
Dimensions
46.5 × 19.8 × 43.4 cm
40.4 × 20.8 × 39.9 cm
35.0 × 20.0 × 41.5 cm
Item weight
17.5 kg
10.0 kg
7.3 kg
Electricity Required
Warranty
1 Year
1 Year
1 Year
Usage scenario
Countertop
Countertop
Countertop
Certification & Test
NSF Certification
NSF/ANSI 372
NSF/ANSI 372
NSF/ANSI 58 & 372
FCC
CE
Reddot design award winner
SGS
TUV
UL
Filtration
Filtration stages
6 Stages
5 Stages
6 Stages
Reduce
99.9% UV Sterilization Rate.
TDS, PFAS, fluoride, chlorine, inorganic arsenic compounds, salts like nitrate and chloride, viruses, bacteria, and other harmful substances

Heavy metals: chromium, lead, arsenic, iron, radium, and calcium

Dirt, dust, sand, chlorine, taste and odor, colloid, residual large particles, suspended solids, rust, sediment, large particles, scale
View the report >
99.9% UV Sterilization Rate.
TDS, PFAS, fluoride, chlorine, inorganic arsenic compounds, salts like nitrate and chloride, viruses, bacteria, and other harmful substances

Heavy metals: chromium, lead, arsenic, iron, radium, and calcium

Dirt, dust, sand, chlorine, taste and odor, colloid, residual large particles, suspended solids, rust, sediment, large particles, scale
99.9% UV Sterilization Rate
TDS, PFAS, fluoride, chlorine, inorganic arsenic compounds, salts like nitrate and chloride, viruses, bacteria, and other harmful substances

Heavy metals: chromium, lead, arsenic, iron, radium, and calcium

Dirt, dust, sand, chlorine, taste and odor, colloid, residual large particles, suspended solids, rust, sediment, large particles, scale
Filter
Filter life span
WD-A1-CF
CF-6 Mths
WD-A1-RO
RO-12 Mths
WD-A2RF-RO
12 Mths
WD-K19RF
12 Mths
Average annual cost
£139.98
£70.00
£70.00
Smart Design
Filter life indicator
TDS Display
Temperature adjustment
UV sterilizer
Self-clean
Adjustable volume
Sound reminder