Waterdrop WD-A2 Water Filtration System
- Capacity: 1.2 gallons
- Purification Method: Reverse Osmosis
- Installation Type: Countertop
- Material Type: A2 RO System, Replacement Filters, User Manual
Last refreshed Aug 4, 2026 · Based on the Amazon listing and published specifications, not hands-on testing.
A reverse osmosis system with a 4.7 liter capacity and a larger footprint, carrying a 3.9 rating that trails others in this lineup.
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ASIN: B0FHJXWQV6Model: WD-A2Category: Water Filtration Systems
Overview
The Waterdrop WD-A2 is a reverse osmosis filtration system with a 4.7 liter capacity, standing about 15.9 x 8.2 x 15.7 in.
At nearly 16 inches on two sides, it has a larger footprint than Waterdrop's more compact countertop units, closer to a stand-alone system than a small pitcher. Its 3.9 rating is the lowest in this filtration lineup, worth weighing alongside the specs.
- Reverse osmosis purification
- 4.7 liter capacity
- 15.9 x 8.2 x 15.7 in footprint
- 3.9 out of 5 rating
Who it's for
Buyers wanting an RO system with several liters of stored capacity who have room for a larger unit. Not for anyone tight on counter or floor space.
Pros and cons
- 4.7 liter capacity holds more than compact pitchers
- Reverse osmosis filtration
- Larger footprint than compact countertop units
- 3.9 rating trails others in this lineup
Performance notes
The reverse osmosis membrane removes dissolved solids as water is pushed through it, and the 4.7 liter capacity determines how much filtered water is stored before a refill or top-up is needed.
Specifications
| Brand | Waterdrop |
|---|---|
| Model | WD-A2 |
| Dimensions & fit | |
| Item Dimensions L X W X H | 15.9 × 8.2 × 15.7 inches |
| Capacity & performance | |
| Capacity | 1.2 gallonslower than 82% of 46 water filtration systems |
| Upper Temperature Rating | 203 °F |
| Lowertemperature Range | 59 °F |
| Construction & materials | |
| Material Type | A2 RO System, Replacement Filters, User Manual |
| Compatibility & installation | |
| Installation Type | Countertop |
| Included components | |
| Unit Count | 1 |
| Included Components | User Manual |
| Other details | |
| Purification Method | Reverse Osmosis |
| Container Type | Dispenser |
| Number Of Items | 1 |
| Other Special Features Of The Product | Reduce TDS |
| Part Number | WD-A2 |
| Item Highlight | 5-Stage Filtration, 6 Temperature Settings, Hot & Cold & Room-Temp Water, 3:1 Pure To Drain, Installation-Free Countertop RO |
Closest rivals on specs
iSpring RO500AK Alkaline Reverse Osmosis System- Capacity 1.2 vs 500 gallons (-100%)
- Upper Temperature Rating 203 vs 100 °F (+103%)
iSpring RCC7P-AK Reverse Osmosis System with Pump- Capacity 1.2 vs 75 gallons (-98%)
- Upper Temperature Rating 203 vs 100 °F (+103%)
iSpring RCC7AK-UV Water Filtration System- Capacity 1.2 vs 75 gallons (-98%)
- Upper Temperature Rating 203 vs 100 °F (+103%)
Frequently asked questions
How much water does the Waterdrop WD-A2 hold?
It has a 4.7 liter capacity.
How big is the Waterdrop WD-A2?
It measures about 15.9 x 8.2 x 15.7 in, larger than a compact countertop unit.