Aquasana Claryum
Score: 85/100
Express Water RO5DX
Score: 85/100Rankings
The Aquasana AQ-5300.55 is a 3-stage under-sink filter using Claryum technology to remove 99.99% of contaminants while retaining beneficial minerals. It is certified to multiple NSF/ANSI standards and offers a significantly faster flow rate than pitcher filters. It is best suited for households seeking rigorous contaminant reduction without the complexity of reverse osmosis.
The Express Water RO5DX is a 5-stage reverse osmosis system that provides high-quality purified water with NSF/ANSI 58 certification and alkaline remineralization. Its main trade-off is the production of wastewater and the need for regular filter maintenance. It is best suited for households of 4+ people seeking reliable daily drinking water with improved taste.
| Attribute | | |
|---|---|---|
0.5 gallons per minute | 0.8 gallons per minutebest | |
6 months | 12 monthsbest | |
3 | 6best | |
600 gallonsbest | 50 gallons | |
1 yearsbest | 1 yearsbest | |
| ↓ lower better | 9 inchesbest | 15 inches |
| ↓ lower better | 4.25 inchesbest | 5 inches |
| ↓ lower better | 12 inchesbest | 14 inches |
Click an attribute name to sort · Green = best, red = worst (relative to this comparison)
| Attribute | | |
|---|---|---|
Dimensions & Fit(3) | ||
Height (inches) | 9.0 inches | 15.0 inches |
Width (inches) | 4.25 inches | 5.0 inches |
Depth (inches) | 12.0 inches | 14.0 inches |
Performance & Filtration(8) | ||
Certifications | NSF/ANSI 42, 53, 401 | NSF/ANSI 58 |
Contaminants Removed | Lead, PFAS, Microplastics, Chlorine, VOCs | Lead, Chlorine, Fluoride, Arsenic, PFAS, Bacteria |
Flow Rate (gallons per minute) | 0.5 gallons per minute | 0.8 gallons per minute |
Filter Life (months) | 6 months | 12 months |
Filtration Stages | 3 | 6 |
Filter Capacity (gallons) | 600 gallons | 50 gallons |
Filtration Technology | Claryum 3-Stage | Reverse Osmosis |
TDS Reduction (percent) | 0 percent | 93-99 percent |
Installation & Compatibility(1) | ||
Installation Type | Under-sink | Under Sink |
Products in the top-left offer the best value (high score, low price).
Professional insights highlight Aquasana's Claryum technology as a robust filtration solution certified to multiple NSF/ANSI standards, including the stricter P473 benchmark for PFAS. Experts note the significant advantage in flow rate compared to pitcher filters.
The provided web research data does not contain user feedback, reviews, or sentiment analysis from everyday customers. Therefore, no consumer praise or recurring themes can be identified.
Professional reviewers highlight the RO5DX's NSF/ANSI 58 certification as a key strength, validating its TDS reduction capabilities and material safety. While experts note that the certification does not cover the full range of 158 claimed contaminants, they consider TDS reduction the most important metric for RO systems. Hands-on testing confirmed a 93% TDS reduction rate, though some TDS creep was observed during idle periods. The pre-assembled kit is praised for simplifying installation.
Users generally praise the system for its reliable performance, compact size, and the peace of mind provided by NSF certification. The all-in-one kit format is appreciated for its convenience, and users report a noticeable improvement in water taste. Maintenance is described as simple and manageable for non-technical users.
