APEC Essence ROES-50
Score: 78/100
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 ROES-50 Essence is a budget-friendly 5-stage under-sink reverse osmosis system designed for DIY installation, producing 50 gallons of purified water daily. It features a 4-gallon storage tank and utilizes a FILMTEC membrane to remove up to 99% of contaminants, including lead, arsenic, and PFAS. However, experts note its high wastewater ratio and lack of full NSF/ANSI 58 certification compared to newer, more efficient models.
| Attribute | | |
|---|---|---|
5 stages | 7 stagesbest | |
50 gallons per day | 400 gallons per daybest | |
99.99 percentbest | — | |
4 gallonsbest | 0 gallons | |
1,000 countbest | 10 count | |
12 monthsbest | — | |
| ↓ lower better | 5.25 inchesbest | 5.91 inches |
| ↓ lower better | 17.5 inches | 13.98 inchesbest |
Click an attribute name to sort · Green = best, red = worst (relative to this comparison)
| Attribute | | |
|---|---|---|
Compliance & Safety(1) | ||
Certifications | WQA Gold Seal | NSF/ANSI 372, FCC |
Storage(1) | ||
Storage Tank Capacity (gallons) | 4 gallons | 0 gallons |
Maintenance(1) | ||
Filter Lifespan (months) | 12 months | 12-24 months |
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) | 5 stages | 7 stages |
Daily Production Rate (gallons per day) | 50 gallons per day | 400 gallons per day |
Wastewater Ratio | 3:1 | 1:1 |
Contaminants Removed (count) | 1000 count | 10 count |
Feed Water Pressure (PSI) | 40 PSI | PSI |
Features(1) | ||
Remineralization | false | true |
Products in the top-left offer the best value (high score, low price).
Professional reviewers praise the APEC ROES-50 as a top pick for filtration performance relative to its price, describing it as a proven workhorse that punches above its weight class in removing critical contaminants.
Everyday consumers generally express high satisfaction with the water quality, noting it tastes better than bottled water and effectively removes city water odors. Recurring complaints focus on the messiness of changing filters, slow flow rates in low-pressure homes, and the high volume of wastewater produced.
“Great-tasting water, easy install, reliable for years.”
“Removes bad taste/odor from city water; better than bottled.”
“Filter changes messy; water everywhere.”
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.
