APEC Essence ROES-PH75
Score: 82/100
Waterdrop G2
Score: 88/100Rankings
The Waterdrop G2 is a compact, tankless under-sink RO system delivering 400 GPD with an exceptional 1:1 wastewater ratio. It features a space-saving design and optional remineralization, making it ideal for homes with limited cabinet space. However, it requires an electrical outlet and is restricted to indoor use.
The APEC Water Systems ROES-PH75 Essence Series is a 6-stage under-sink reverse osmosis system rated at 75 gallons per day, designed to produce alkaline mineral-enhanced water by adding high-purity calcium carbonate. It features a solid metal frame for durability, large-capacity block filters for extended life, and an eco-friendly low waste ratio with automatic shut-off. It is ideal for families wanting 99% contaminant removal plus pH boost for taste and health preferences.
| Attribute | | |
|---|---|---|
6 stages | 7 stagesbest | |
75 gallons per day | 400 gallons per daybest | |
99 percentbest | — | |
4 gallonsbest | 0 gallons | |
— | 10 countbest | |
| ↓ lower better | 5.25 inchesbest | 5.91 inches |
| ↓ lower better | 17.5 inches | 13.98 inchesbest |
40 PSIbest | — |
Click an attribute name to sort · Green = best, red = worst (relative to this comparison)
| Attribute | | |
|---|---|---|
Compliance & Safety(1) | ||
Certifications | WQA Certified | NSF/ANSI 372, FCC |
Storage(1) | ||
Storage Tank Capacity (gallons) | 4 gallons | 0 gallons |
Design(2) | ||
System Width (inches) | 5.25 inches | 5.91 inches |
System Height (inches) | 17.5 inches | 13.98 inches |
Power(1) | ||
Power Requirement | false | true |
Performance(5) | ||
Filtration Stages (stages) | 6 stages | 7 stages |
Daily Production Rate (gallons per day) | 75 gallons per day | 400 gallons per day |
Wastewater Ratio | Low | 1:1 |
Contaminants Removed (count) | null count | 10 count |
Feed Water Pressure (PSI) | 40 PSI | PSI |
Products in the top-left offer the best value (high score, low price).
Search results lack in-depth expert reviews from major testing sites like Wirecutter or Consumer Reports. Product pages emphasize manufacturer guarantees of premium components and 2x contaminant removing capacity. A YouTube installer/review video highlights successful installation and TDS reduction testing, positioning the system as worthwhile for clean water.
Limited direct quotes are available, but Home Depot and Lowe's pages note high engagement with 246 questions and answers. Common inferred praise includes effective TDS reduction and easy DIY installation. Recurring complaints are not detailed, though potential issues from similar RO systems include initial setup plumbing challenges.
Professional sources emphasize the system's efficiency and filtration effectiveness, highlighting the 400 GPD flow rate and 1:1 drain ratio as standout features.
The system maintains a 4.5-star rating, with common user praise focusing on fast water delivery, improved water quality, and the convenience of the space-saving design.
