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iSpring RCC7AKUV Umkehrosmose vs. Waterdrop A2G compared
Reverse Osmosis System
At a glance
The key numbers for both devices side by side.
Overall rating
7474Solide
7575Gut
Value for money
64Fair
68Fair
Best price
€108.99
€449.00€499.00−10 %
Price advantage
€340.01 cheaper
—
Offers
2 shops
2 shops
Rank in category
Rank 9 of 15
Rank 7 of 15
Rating
Sub-ratings compared
iSpring RCC7AKUV UmkehrosmoseOverall rating 74Waterdrop A2GOverall rating 75
iSpring RCC7AKUV UmkehrosmoseWaterdrop A2G
Filtration performance83/10075/100
Flow rate & wastewater69/10075/100
Installation67/10089/100
Running costs & maintenance77/10073/100
Build quality & ease of use65/10060/100
Filtration performance
83
75
Flow rate & wastewater
69
75
Installation
67
89
Running costs & maintenance
77
73
Build quality & ease of use
65
60
Specs
Specs compared
Key specs
Model
RCC7AKUV
A2G
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
Under-sink
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
0.2 l/min
0.26 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
0.5 :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
With storage tank
With storage tank
RemineralizationAccording to the manufacturer, adds minerals such as calcium and magnesium back to the filtered water
Yes
Yes
Rejection rateHow much of the dissolved solids (TDS) the membrane retains according to the manufacturer, in percent
97.9 %
Filter & maintenance
Filter stagesNumber of filter stages according to the manufacturer, including the membrane
7 levels
6 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)
NSF/ANSI 372 (low lead)
Pre-filter replacementRecommended pre-filter replacement interval according to the manufacturer in months
12 months
Membrane replacementRecommended replacement interval of the reverse osmosis membrane according to the manufacturer in months
36 months
12 months
Filter costCost of replacement filters per year based on the manufacturer’s replacement intervals, in euros
79.99 €/year
Tool-free filter changeAccording to the manufacturer, filters can be changed without tools
No
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
Yes
Filter change indicatorAccording to the manufacturer, the unit shows the filter status or when a change is due
No
Yes
TDS displayAccording to the manufacturer, displays the water’s TDS value, i.e. the amount of dissolved solids
No
No
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
Yes
Hot water & cooling
Hot waterAccording to the manufacturer, the unit dispenses hot water, e.g. for tea
Yes
Max. water temperatureMaximum dispensing temperature according to the manufacturer in °C
95 °C (203 °F)
Heat settingsNumber of selectable dispensing temperatures according to the manufacturer, room temperature included – not the volume settings
6 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
Chilled waterAccording to the manufacturer, the unit chills the water before dispensing
Yes
Power consumption when heatingMaximum power consumption according to the manufacturer in watts, when dispensing hot water – not the power while filtering
1,530 W
Standby powerPower consumption in standby mode according to the manufacturer in watts
9 W
Connection & controls
DispensingDispensing point included, according to the manufacturer
Separate faucet
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
Leak protectionAccording to the manufacturer, a sensor or automatic shut-off valve cuts off the supply in case of a leak – important under the sink
Yes
Min. water pressureMinimum water line pressure according to the manufacturer in bar – below that, a pump is needed
3.1 bar (45 psi)
Tank capacityStorage tank volume according to the manufacturer in liters
12.11 liters (3.2 gal)
1 liters (0.26 gal)
Refill tankCapacity of the raw water tank according to the manufacturer in liters – determines how often you refill
4.7 liters (1.2 gal)
Noise levelPump noise while filtering according to the manufacturer in dB
23.4 dB
Dimensions & weight
WidthWidth of the unit according to the manufacturer in cm
39 cm (15 in)
20.8 cm (8.2 in)
DepthDepth of the unit according to the manufacturer in cm – matters for the space under the sink
13 cm (5.1 in)
40.4 cm (16 in)
HeightHeight of the unit according to the manufacturer in cm
48 cm (19 in)
39.9 cm (16 in)
WeightWeight without water according to the manufacturer in kg
9.1 kg (20 lb)
10 kg (22 lb)
General
Warranty
1 years
1 years
In the box
Umkehrosmoseanlage 7-stufig, Vorratstank, Wasserhahn (Messing, gebürstetes Nickel), Installationszubehör
Gerät, Filter, Karaffe, Bedienungsanleitung
Prices
Offers
Verdict
Pros & cons
Die iSpring RCC7AKUV ist eine Untertisch-Osmoseanlage mit 12-l-Tank und Systemzertifikat nach NSF/ANSI 58, die Blei, Fluorid und Nitrat gründlich zurückhält. Sie passt zu Haushalten mit Platz im Spülenschrank, die günstige Standardfilter schätzen und den Einbau selbst angehen. Der Haken: Bei gechlortem Stadtwasser kann die UV-Stufe süßlichen Geruch verursachen, dazu kommen rund 2 l Abwasser je Liter.
Pros
- Blei, Arsen und Uran im Labor um 100 % gesenkt, Fluorid um 99 %
- Systemzertifikat nach NSF/ANSI 58 für 97,9 % weniger gelöste Salze
- Vorfilter in Standardmaß, auch von anderen Herstellern erhältlich
- Mit rund 2 l Abwasser je Liter sparsam für eine Tankanlage ohne Pumpe
- Mechanischer Leckageschutz sperrt den Zulauf bei Nässe
- Ersatzteile vom Kundendienst kommen schnell und oft kostenlos
Cons
- UV-Stufe verursacht bei gechlortem Stadtwasser teils süßlichen Geruch
- Mineralfilter gab im Labor Spuren von Arsen und Vanadium ab
- Undichtigkeiten an Steckverbindern und Winkelstücken kommen wiederholt vor
- Für den US-Markt gebaut: UV-Vorschaltgerät auf 110 V, Anschlüsse in Zoll
- Filterwechsel nur mit Schlüssel, ohne Wechselanzeige
Die Waterdrop A2G ist eine Auftisch-Osmoseanlage, die ohne Installation heißes und gekühltes Wasser liefert, von 15 bis 95 °C. Sie passt zu ein bis zwei Personen in der Mietwohnung, die täglich Tee oder Kaffee kochen. Die Filterkartusche wechselst du einmal im Jahr ohne Werkzeug. Dafür nimmst du einen gut hörbaren Kompressor in Kauf, und der 4,7-l-Tank muss täglich nachgefüllt werden.
Pros
- Heiß- und Kaltwasser von 15 bis 95 °C in sechs Stufen, ohne Installation
- Sparsames Verhältnis von 3:1 Reinwasser zu Abwasser
- Kartusche hält 12 Monate und wird ohne Werkzeug gewechselt
- Mineralisierung macht das Wasser milder, gut für Tee und Kaffee
- Kindersicherung per Entsperrtaste für heißes Wasser
- UV-Entkeimung, Tank und Karaffe leicht herausnehmbar
Cons
- Kompressor brummt hörbar und springt immer wieder an
- Tank mit 4,7 l reicht einer Person nur etwa einen Tag
- Karaffe und Tank tropfen beim Herausnehmen auf die Arbeitsplatte
- Erster Schwall Heißwasser kommt lauwarm, Kühlung lässt nach 250 ml nach
- Keine TDS-Anzeige, herstellereigene Kartusche statt Standardfilter
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