Skip to content

Select and compare

iSpring RCD100-E Umkehrosmoseanlage vs. Waterdrop K19-HG compared

Reverse Osmosis System

At a glance

The key numbers for both devices side by side.

Overall rating
79Gut
77Gut
Value for money
80Excellent
81Excellent
Best price
€465.99
€309.00
Price advantage
—
€156.99 cheaper
Offers
1 shop
1 shop
Rank in category
Rank 5 of 15
Rank 6 of 15

Rating

Sub-ratings compared

iSpring RCD100-E UmkehrosmoseanlageOverall rating 79Waterdrop K19-HGOverall rating 77
FiltrationperformanceFlowrate & wastewaterInstallationRunningcosts & maintenanceBuildquality & ease of use
iSpring RCD100-E UmkehrosmoseanlageWaterdrop K19-HG
Filtration performance86/10087/100
Flow rate & wastewater76/10066/100
Installation95/10089/100
Running costs & maintenance65/10077/100
Build quality & ease of use62/10057/100
Filtration performance
86
87
Flow rate & wastewater
76
66
Installation
95
89
Running costs & maintenance
65
77
Build quality & ease of use
62
57

Specs

Specs compared

Key specs

Model
RCD100-E
K19-HG
TypeInstallation type according to the manufacturer – under-sink systems connect to the water line under the sink, countertop units sit on the worktop and are filled by hand
Countertop (no installation)
Countertop (no installation)
Flow ratePure water flow rate according to the manufacturer in liters per minute – 400 GPD (gallons per day) equals about 1.05 liters per minute
0.26 l/min
0.2 l/min
Pure-to-waste ratioRatio of pure water to wastewater according to the manufacturer – at 3:1, one liter goes down the drain for every three liters of drinking water; higher is more economical; if there is more wastewater than pure water, enter a decimal, so 1:3 as 0.33
2.5 :1
3 :1
TankWhether, according to the manufacturer, the unit stores filtered water in a storage tank or filters on demand – the refill tank of a countertop unit does not count here
Tankless (direct flow)
Tankless (direct flow)
RemineralizationAccording to the manufacturer, adds minerals such as calcium and magnesium back to the filtered water
Yes
Rejection rateHow much of the dissolved solids (TDS) the membrane retains according to the manufacturer, in percent
97.6 %

Filter & maintenance

Filter stagesNumber of filter stages according to the manufacturer, including the membrane
5 levels
7 levels
CertificationStandards the unit is certified to according to the manufacturer – only actual certifications, not “tested to the standard”; NSF/ANSI 58 only if the whole system is certified, “certified elements” or “components” do not count
NSF/ANSI 58 (reverse osmosis)NSF/ANSI 372 (low lead)
Pre-filter replacementRecommended pre-filter replacement interval according to the manufacturer in months
6 months
12 months
Membrane replacementRecommended replacement interval of the reverse osmosis membrane according to the manufacturer in months
24 months
12 months
Filter costCost of replacement filters per year based on the manufacturer’s replacement intervals, in euros
89.99 €/year
Tool-free filter changeAccording to the manufacturer, filters can be changed without tools
Yes
Yes
Standard filterAccording to the manufacturer, the unit uses filters in a standard size (e.g. 10 inches) that other brands also sell – not proprietary cartridges
No
Filter change indicatorAccording to the manufacturer, the unit shows the filter status or when a change is due
Yes
Yes
UV sterilizationAccording to the manufacturer, a UV lamp additionally disinfects the water
Yes
Yes
Alkaline waterA mineral filter raises the water’s pH according to the manufacturer (alkaline mineralization)
Yes

Hot water & cooling

Hot waterAccording to the manufacturer, the unit dispenses hot water, e.g. for tea
Yes
Yes
Max. water temperatureMaximum dispensing temperature according to the manufacturer in °C
96 °C (205 °F)
95 °C (203 °F)
Heat settingsNumber of selectable dispensing temperatures according to the manufacturer, room temperature included – not the volume settings
4 levels
4 levels
Child lockAccording to the manufacturer, hot water can only be dispensed after unlocking, e.g. via a key lock or a second press
Yes

Connection & controls

DispensingDispensing point included, according to the manufacturer
None (countertop unit)
None (countertop unit)
Power connection requiredAccording to the manufacturer, the unit needs a power connection, e.g. for the pump – tankless systems usually have a built-in pump
Yes
Yes
Refill tankCapacity of the raw water tank according to the manufacturer in liters – determines how often you refill
4.92 liters (1.3 gal)
5 liters (1.3 gal)

Dimensions & weight

WidthWidth of the unit according to the manufacturer in cm
17.78 cm (7 in)
20 cm (7.9 in)
DepthDepth of the unit according to the manufacturer in cm – matters for the space under the sink
39.37 cm (16 in)
35 cm (14 in)
HeightHeight of the unit according to the manufacturer in cm
39.37 cm (16 in)
41.5 cm (16 in)
WeightWeight without water according to the manufacturer in kg
9 kg (20 lb)
7.3 kg (16 lb)

General

Warranty
1 years
1 years

Prices

Offers

iSpring RCD100-E Umkehrosmoseanlage

Waterdrop K19-HG

Ad · Links marked with * are affiliate links: if you buy through them, we earn a commission – at no extra cost to you.

Verdict

Pros & cons

Die iSpring RCD100-E bringt Umkehrosmose ohne jede Installation in die Küche: Tank von Hand füllen, Stecker rein, fertig. Sie hält 97,6 % der gelösten Salze zurück und liefert Heißwasser bis 96 °C für Tee, Kaffee und Fläschchen. Gekühltes Wasser gibt es nicht. Der Haken ist die anfällige Steuerelektronik, die bei mehreren Geräten im ersten Jahr ausfiel – heb den Kaufbeleg gut auf.

Pros

  • Keine Installation nötig, nur Steckdose und Stellfläche von 39 x 18 cm
  • Hält 97,6 % der gelösten Salze und damit Kalk zurück
  • Vier Temperaturstufen bis 96 °C ersetzen den Wasserkocher
  • Sparsames Verhältnis von 2,5 l Reinwasser zu 1 l Konzentrat
  • Werkzeugloser Filterwechsel mit Wechselanzeige im Display
  • Kindersicherung an der Heißwasserausgabe

Cons

  • Steuerelektronik fiel bei mehreren Geräten nach vier bis zwölf Monaten aus
  • Nur herstellereigene Kartuschen, Standardfilter passen nicht
  • Kein gekühltes Wasser und keine Stufe um 70 bis 80 °C für grünen Tee
  • Tank muss von Hand befüllt und Konzentrat geleert werden
  • Garantie nur 1 Jahr

Der Waterdrop K19-HG ist ein Auftischgerät, das Osmosewasser bis 95 °C ohne Installation liefert, und das komplette System ist nach NSF/ANSI 58 zertifiziert. Er passt zu Ein- und Zwei-Personen-Haushalten in Mietwohnung oder Büro, die vor allem Tee und Kaffee zubereiten. Der Haken: höchstens 750 ml am Stück, häufiges Nachfüllen des 5-l-Tanks und Probleme bei sehr hartem Wasser.

Pros

  • Ganzes System nach NSF/ANSI 58 zertifiziert, nicht nur einzelne Bauteile
  • Heißwasser in vier Stufen von 50 bis 95 °C, Portionen von 150 bis 750 ml
  • Keine Installation nötig, nur Steckdose und Arbeitsplatte
  • Sparsames Verhältnis 3:1 von Reinwasser zu Abwasser
  • Nur eine Kartusche für 12 Monate, Wechsel ohne Werkzeug
  • Gefiltertes Wasser schmeckt sauber und weicher als aus dem Hahn

Cons

  • Bei sehr hartem Wasser verkalken Tank und Pumpe teils nach wenigen Tagen
  • Höchstens 750 ml am Stück, danach knapp 4 min Nachfiltern
  • 5-l-Tank muss im Zwei-Personen-Haushalt oft täglich nachgefüllt werden
  • Abstellfläche nicht höhenverstellbar, Wasser spritzt über den Glasrand
  • Kein Standardfilter, Ersatzkartusche nur von Waterdrop

Spotted an error?

Wrong price, wrong spec or a dead link – let us know and we will fix it quickly.

Report an error

Similar comparisons

iSpring RCD100-E UmkehrosmoseanlageiSpring RCD100-E Umkehrosmoseanlage79
Waterdrop C1SLWaterdrop C1SL79
View comparison
iSpring RCD100-E UmkehrosmoseanlageiSpring RCD100-E Umkehrosmoseanlage79
iSpring RCD100HCG UmkehrosmoseanlageiSpring RCD100HCG Umkehrosmoseanlage75
View comparison
iSpring RCD100-E UmkehrosmoseanlageiSpring RCD100-E Umkehrosmoseanlage79
Waterdrop A2GWaterdrop A2G75
View comparison
iSpring RCD100-E UmkehrosmoseanlageiSpring RCD100-E Umkehrosmoseanlage79
iSpring RCC7AKUV UmkehrosmoseiSpring RCC7AKUV Umkehrosmose74
View comparison