Waterdrop X12-PRO Tankless Reverse Osmosis System 1200 GPD
- Reverse osmosis, under-sink install
- 1200 gallon capacity
- BPA free material
- 18.2 x 6.25 x 16.72 in, **17.58 lb**
Last refreshed Aug 4, 2026 · Based on the Amazon listing and published specifications, not hands-on testing.
An under-sink reverse osmosis system with a larger gallon rating than the smaller model in the series. The listing gives no flow rate, TDS limit or box contents.
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ASIN: B0DPX3YNWKModel: WD-X12Category: Water Filtration Systems
Overview
Fitting under the sink, the WD-X12W pushes tap water through a reverse osmosis membrane for one tap. The listing calls the material BPA free and gives dimensions that need a roomy cabinet.
A high gallon rating and a stated BPA free material give a straightforward under-sink option. The page lacks the usual detail, so flow, drain ratio, certifications and included parts all need checking before ordering.
Who it's for
A homeowner with under-sink access who wants a set-and-forget reverse osmosis system suits this format. A renter, or anyone who needs documented certifications and flow rates, should look at a better-documented model.
Pros and cons
- Reverse osmosis purification
- High gallon rating
- BPA free material listed
- Flow rate not stated
- Included parts not given
- Wide body needs cabinet room
Performance notes
Reverse osmosis forces water through a membrane under line pressure, so output speed and drain waste depend on the supply pressure and TDS. The listing gives none of these figures, so the gallon rating is the only guide to service life.
Specifications
| Brand | Waterdrop |
|---|---|
| Model | WD-X12 |
| Dimensions & fit | |
| Dimensions | 18.2 x 6.25 x 16.72 in |
| Weight | 17.58 lb |
| Capacity & performance | |
| Capacity | 1200 gallons |
| Construction & materials | |
| Material | BPA free |
| Compatibility & installation | |
| Installation Type | Under-sink |
| Other details | |
| Purification | Reverse osmosis |
Closest rivals on specs
iSpring RCC7P-AK Reverse Osmosis System with Pump- Weight 17.58 vs 20 pounds (-12%)
iSpring CRO1000 Commercial Reverse Osmosis System- Weight 17.58 vs 20.5 pounds (-14%)
Frequently asked questions
Will the Waterdrop WD-X12W fit under my sink?
The listed size is 18.2 x 6.25 x 16.72 in. Measure the cabinet, and leave room for tubing, which the listing does not detail.
Does the WD-X12W work with high-TDS water?
The listing gives no TDS limit, so test your supply and ask the seller.
Is the WD-X12W a countertop unit?
No. It is an under-sink install.