Purewell PW-OB-PH
Score: 72/100
AquaTru Classic
Score: 75/100Rankings
The AquaTru Classic is a portable countertop reverse osmosis system that removes over 84 contaminants without plumbing. Its main trade-off is the slow batch-filling process and higher water waste compared to under-sink systems. It is best suited for renters and apartment dwellers who cannot modify plumbing.
The Purewell 6-Stage system offers high-precision 0.01-micron filtration in a durable stainless steel body, making it excellent for removing microscopic contaminants. However, it lacks TDS reduction capabilities and has a limited water capacity. It is best suited for small households or off-grid use where fine filtration is prioritized over mineral adjustment.
| Attribute | | |
|---|---|---|
4 GPMbest | 0.04 GPM | |
6 months | 12 monthsbest | |
6 stagesbest | 4 stages | |
— | 91 %best | |
| ↓ lower better | 0.01 micronsbest | — |
| ↓ lower better | — | 3 ratiobest |
| ↓ lower better | 20 inches | 14 inchesbest |
| ↓ lower better | 8.8 inchesbest | 12 inches |
Click an attribute name to sort · Green = best, red = worst (relative to this comparison)
| Attribute | | |
|---|---|---|
Health & Safety(2) | ||
Certifications | NSF/ANSI 42, 372 | NSF/ANSI |
Remineralization | true | false |
Installation & Compatibility(1) | ||
Installation Type | Countertop / Gravity | Countertop |
Filtration & Performance(3) | ||
Filtration Technology | Ultra-Filtration (UF) and Carbon | Reverse Osmosis |
Flow Rate (GPM) | 4.0 GPM | 0.04 GPM |
Filtration Stages (stages) | 6 stages | 4 stages |
Maintenance & Warranty(1) | ||
Filter Lifespan (months) | 6 months | 12 months |
Dimensions & Build(3) | ||
Height (inches) | 20.0 inches | 14 inches |
Width (inches) | 8.8 inches | 12 inches |
Depth (inches) | 8.8 inches | 14 inches |
Products in the top-left offer the best value (high score, low price).
Professional reviews highlight the Purewell system as a well-crafted solution for fine filtration needs, praising its 0.01-micron accuracy and durable construction, while noting the inability to reduce TDS.
Users appreciate the ease of use, portability, and effective contaminant removal, though some note the slower flow rate and limited capacity as minor inconveniences.
Professional reviewers rate the AquaTru Classic as a strong, portable alternative to under-sink RO systems, praising its NSF-certified contaminant removal and ease of installation. However, critics note the slow dispensing speed and the limitation that remineralization is only available on higher-end models.
Everyday users report overwhelmingly positive sentiment regarding water taste and convenience, frequently describing the water as crisp and clean. Common praise highlights the ease of use and the benefit of chilled water from the removable tank.
“The water tastes crisp, clean, and like bottled water.”
“Ice made from AquaTru water is clearer and less odorous.”
“The pump is audible and can be annoying in small, quiet spaces.”
