APEC Water Systems ROES-PH75: Ultimate 6-Stage Alkaline RO Filter System Review

With many years of experience testing and reviewing under-sink and countertop water filtration systems, I have learned what makes a product truly reliable and effective. This review of the APEC Water Systems ROES-PH75 Essence Series is based on careful research and hands-on testing. I understand how important clean and healthy drinking water is for you and your family. That is why I promise to give you an honest and clear analysis of this 6-stage reverse osmosis system. You can trust my insights to help you make a smart and confident choice for better water quality at home.

Pros & Cons

What We Loved

• ✅ Removes up to 99% of contaminants
• ✅ Adds beneficial calcium for improved alkalinity
• ✅ Durable, premium-quality 6-stage filtration
• ✅ WQA certified for reliable performance

What Could Be Better

• ❌ Higher initial price compared to basic RO systems
• ❌ Requires water pressure between 40-85 psi
• ❌ Filter replacements add to ongoing cost

Who Should Buy This

This water filter system is perfect for anyone who wants clean, healthy drinking water at home. If you care about removing harmful chemicals and adding healthy minerals back into your water, this system is a great choice. It works well for families, people with sensitive health needs, or anyone who wants fresh, pure water straight from the tap. It is also good for those who want a reliable and long-lasting filter that is easy to install under the sink.

If you only need a small or portable filter, this system might be too big or expensive. Also, if you rent a home and cannot install under the sink, this product may not be a good fit. People who do not want to spend time on filter maintenance might prefer a simpler option. Finally, if your water quality is already good, you might not need such an advanced system.

Technical Specifications

Key Details

• Brand: APEC Water Systems
• Model: ROES-PH75
• Size: 18.0″ x 5.25″ x 16.0″
• Weight: 3.11 Pounds
• Material: High-Quality Food Grade Plastic
• Color Options: White
• Special Features: 6-Stage Filtration, Alkaline Mineral pH+ Enhancement, Certified Ultra Safe Reverse Osmosis
• Warranty: 1 Year

Our Testing Experience

First Impressions

When I first received the APEC Water Systems ROES-PH75, I was impressed by its solid build and compact size. Setting it up was easier than I expected — the instructions were clear, and all the parts felt high quality. I loved that it didn’t take up much space under my sink with its 18 by 5.25 by 16-inch dimensions. The moment I started testing the water, I noticed a difference in taste right away. It felt cleaner and fresher, which was exciting to see after just the initial setup.

Daily Use

Using this reverse osmosis system daily quickly became part of my routine. I enjoyed having fresh, alkaline water straight from the tap without any strange odors or flavors. The 6-stage filtration really made a difference—I could tell it was removing a lot of impurities. Filling up my water bottle or cooking with this water felt better knowing it was safe and purified. Plus, the added calcium gave the water a smooth, pleasant taste that made drinking water more enjoyable throughout the day.

Key Features in Action

The feature I appreciated most was the system’s ability to remove up to 99% of harmful contaminants, including chlorine, lead, and even fluoride. Knowing it could handle over 1000 impurities gave me peace of mind about the water quality. The alkaline mineral filter was a standout—adding calcium to boost pH made the water taste naturally better and felt healthier. The water pressure range of 40-85 psi was perfect for my home, ensuring steady flow without any issues. Overall, the premium parts really showed in the system’s smooth operation and water quality.

Long-Term Performance

After using the ROES-PH75 for several months, I can say it has held up very well. The filters lasted as promised, and changing them was straightforward. The system continued to deliver crisp, great-tasting water without any drop in performance. I didn’t experience leaks or pressure problems, which gave me confidence in its durability. This reverse osmosis system has truly become a trusted part of my home, providing safe and refreshing water day after day.

How It Compares

Side-by-Side Comparison

Feature	APEC ROES-PH75 Essence Series 6-Stage RO System	APEC ROES-PH75 with Extra High Capacity Filter Set	APEC FILTER-MAX-ESPH Replacement Filter Set
Price	See Price	See Price	See Price
Quality	Supreme quality engineered with premium components ensuring durable filtration and long-lasting reverse osmosis system performance.	Same supreme quality with premium components and added extra high capacity filter set for stages 1-3 enhancing filter lifespan.	Quality focused on replacement filters specifically designed for the Essence series, maintaining high filtration standards for pre-filters and RO membrane.
Features	75 GPD, 6-stage filtration removing up to 99% impurities including Chlorine, VOCs, Fluoride, Arsenic, Lead, Heavy Metals; max TDS 2000 ppm; feed water pressure 40-85 psi; premium-grade calcium for pH enhancement and better taste.	Same 75 GPD, 6-stage system with extra high capacity filters for stages 1-3; removes same contaminants with added filter longevity.	Complete replacement filter set (stages 1-4) for ROES-PH75; includes pre-filters removing dust, rust, chlorine, taste and odor plus 75 GPD TFC RO membrane for contaminant removal.
Best For	Homeowners seeking ultra-pure alkaline water with mineral enhancement and comprehensive 6-stage filtration in a durable RO system.	Users who want the same high-quality RO system with longer-lasting filters in stages 1-3 for reduced maintenance frequency.	Current Essence series owners needing a reliable full replacement filter set to maintain system performance.

In my opinion, this APEC Water Systems ROES-PH75 Essence Series Top Tier Alkaline Mineral pH+ 75 GPD 6-Stage Certified Ultra Safe Reverse Osmosis Drinking Water Filter System stands out because it combines supreme build quality with premium mineral enhancement for better alkalinity and taste, while effectively removing a wide range of contaminants. Compared to competitors, it offers a balanced solution of filtration performance and water quality improvement. If you’re like me and prefer a complete, durable RO system that not only purifies but also enhances water, this is the better choice.

Customer Feedback on APEC Water Systems ROES-PH75 Essence Series Top Tier Alkaline Mineral pH+ 75 GPD 6-Stage Certified Ultra Safe Reverse Osmosis Drinking Water Filter System

Overall Satisfaction

Customers generally express high satisfaction with an average rating of 4.67 out of 5, indicating strong trust and approval of the product’s performance and quality.

Most Praised Features

• Effective water purification with noticeable improvement in taste and odor.
• Easy installation process with clear instructions.
• Durable build quality and reliable long-term performance.

Common Concerns

• Some users experience slower water flow rates than expected.
• Replacement filter costs are considered somewhat high by a few customers.

Who Loves It Most

Health-conscious individuals and families seeking cleaner, alkaline-enhanced drinking water appreciate this system the most, especially those who value certified safety and mineral balancing features.

Is It Worth the Price?

Price Analysis

At $229.95 with an 18% discount from $279.99, the APEC ROES-PH75 is competitively priced for a 6-stage reverse osmosis system. Similar high-quality RO systems typically range from $200 to $300, making this a fair price given its features and certifications.

Value Features

• 6-stage filtration removes up to 99% of over 1000 impurities, ensuring ultra-pure water — justifying the investment in health.
• Alkaline mineral pH+ filter adds calcium for improved taste and balanced alkalinity, enhancing water quality beyond basic filtration.
• WQA certified system guarantees reliability and performance, providing peace of mind with certified safety standards.
• Long-lasting premium filters reduce replacement frequency, saving money and hassle over time.

Vs. Competitors

Compared to other under-sink RO systems, the ROES-PH75 offers a strong balance of advanced filtration stages and mineral enhancement at a moderate price point, often outperforming cheaper models that lack certification or mineral addition.

Final Verdict

This system is a solid buy for those seeking high-quality, mineral-enhanced purified water without overspending. Its features and certifications make it a valuable investment in clean drinking water.