The filter casing started to leak for my under sink RO system, so I needed to replace the complete casing, cap & mug assembly. I had to wait long because the parts were back ordered. But once things a... See more
Company replied
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Review summary
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Reviews shaping this summary
Pricing was good and the filter quality appears very good. However, there were no filter to piping adapters included or available for purchase through your website. This would be handy if you are inte... See more
Company replied
Ordering and Delivery were painless. The only reason I didn't rate 5 stars was that some of the John Guest Valves and Tees were not found via search, I had to go elsewhere to find the part number to... See more
Company replied
Always appreciate the availability of this item for truly, clean drinking water through a countertop version, which works great with our rental home. The instructions are pretty plain, but I will say... See more
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Company details
- #9 of 11 best companies in Water Purification Company
- #10 of 12 best companies in Water Filter Supplier
- #1 of 1 best companies in Water Softening Equipment Supplier
Written by the company
#1 US Home Reverse Osmosis & Water Filter Systems | APEC Water. With 25 years of customer support & quality, APEC is the top reverse osmosis home water filtration system. Learn about our home water treatment systems here.
Contact info
1550 Valley Vista Drive, 91765, Diamond Bar, United States
- 8008804808
- support@apecwater.com
- apecwater.com
4.1
Great
783 reviews
Asks customers to review
This company invites their customers to review, whether positive or negative
Replied to 95% of negative reviews
Typically replies within 24 hours
How this company uses Trustpilot
See how their reviews and ratings are sourced, scored, and moderated.
Good morning everyone
Good morning everyone
Happy Sunday enjoy your holiday 🎆
January 25, 2026
Unprompted review
Reply from APEC Water Systems
Dear Fazlullah,
Thank you for your message. We hope you have a wonderful day!
Best Regards,
Karen
APEC Customer Service
Great customer service
September 25, 2025
Reply from APEC Water Systems
Dear Susan,
Thank you for your kind words! We’re delighted to know you had a positive experience. Your trust and satisfaction are very important to us, and we look forward to supporting you and your family with all your water needs.
Best Regards,
Karen
APEC Customer Service
Delivery was on time!
December 15, 2025
Reply from APEC Water Systems
Dear CuJohn,
Thank you for your feedback! We’re glad to hear that your replacement filters were delivered on time. We appreciate your support and look forward to serving you again.
Best Regards,
Karen
APEC Customer Service
APEC is simply THE BEST!
I’ve got a five filter system with re-mineralization. I changed my filters as recommended by the regular service schedule. It’s easy to do and you can see how much garbage is taken out of the local water. Even with the soft water system, this helps amazingly well! The mineralization fixes the soft water issue, and the soft water issue takes care of the majority of the garbage coming through my commercial waterline. I recommend a PEC to anyone and everyone!
December 15, 2025
Reply from APEC Water Systems
Dear Jon,
Thank you so much for your wonderful feedback! We’re thrilled to hear that your ROES-PH75 system has made such a noticeable difference for you. It’s great to know that the filter changes are easy and that the system is helping with both soft water and local water contaminants. Your recommendation means a lot to us, and we look forward to continuing to provide clean, healthy water for you and your family!
Best Regards,
Karen
APEC Customer Service
Reply from APEC Water Systems
Dear Daniel,
We appreciate your great review! It’s wonderful to know that the ROTL-600-PH was easy to install and arrived fast. Thank you for recommending our product—we’re happy to support your water needs.
Best Regards,
Karen
APEC Customer Service
I have a countertop system that I love
I have a countertop system that I love. I bought one for my Son and Daughter-in-law and they love it too! Especially using the hot water feature for their french press coffee.
December 11, 2025
Reply from APEC Water Systems
Dear Mindy,
Thank you so much for sharing your experience! We’re thrilled to hear that you love your ROCT-PLUS and that your son and daughter-in-law are enjoying it as well—especially the hot water feature for their French press coffee. Your satisfaction and trust mean the world to us, and we truly appreciate you choosing our system for your family.
Best Regards,
Karen
APEC Customer Service
Wonderful product
Wonderful product, we are so happy to have it. There was one piece that did not match the diagram which gave us a bit of trouble with installation. But it was figured out and everything has been great since.
December 11, 2025
Reply from APEC Water Systems
Dear Hayley,
Thank you so much for your wonderful feedback! We’re thrilled to hear you’re happy with the product and that everything is working great now. We appreciate you sharing your experience and your patience during installation. Your satisfaction means the world to us, and we look forward to continuing to support your water needs.
Best Regards,
Karen
APEC Customer Service
Reply from APEC Water Systems
Dear Karim,
Thank you so much for your kind words! We’re thrilled to hear you had a great experience with our customer support team and that you’re extremely satisfied. Your feedback means a lot to us, and we truly appreciate your trust.
Best Regards,
Karen
APEC Customer Service
Great support from the manufacturer
Great product and excellent support. The UV lamp arrived broken, I emailed the manufacturer and within hours I had a respond, and a new lamp was shipped. the filters fit perfectly under my kitchen sink and the water tastes great.
December 11, 2025
Reply from APEC Water Systems
Dear Armando,
We truly appreciate your feedback! We’re glad our team was able to promptly replace the UV bulb and that everything is working perfectly now. Thank you for choosing us and we look forward to continuing to support your water needs.
Best Regards,
Karen
APEC Customer Service
APEC review
December 15, 2025
Reply from APEC Water Systems
Dear John,
Thank you for your feedback! We truly appreciate your support and look forward to continuing to serve your water needs.
Best Regards,
Karen
APEC Customer Service
No surprises
No surprises. It was just as advertised and provides very good tasting water.
December 15, 2025
Reply from APEC Water Systems
Dear Andrea,
We truly appreciate your feedback and are glad to hear the ROTL-600-PH performed exactly as described and is delivering excellent-tasting water. Thank you for choosing us—we look forward to supporting your future water needs.
Best Regards,
Karen
APEC Customer Service
Reply from APEC Water Systems
Dear Neal,
Thank you for sharing your experience! We’re glad your order arrived early and met your expectations. We truly appreciate your support and look forward to serving you again.
Best Regards,
Karen
APEC Customer Service
Good RO system better customer service.
John worked with us until we solved the issue we were having with our RO system. AWSOME customer support.
December 15, 2025
Reply from APEC Water Systems
Dear Paul,
We truly appreciate your feedback. It’s great to hear that John provided thorough support and helped get your RO system working properly. Providing awesome customer support is always our goal, and your satisfaction truly means the world to us. We look forward to continuing to serve you and your family for all your water needs!
Best Regards,
Karen
APEC Customer Service
Good product at reasonable price.
July 12, 2025
Reply from APEC Water Systems
Dear Coe,
Thank you so much for your wonderful feedback! We’re thrilled to hear you’re pleased with our products and their value. Your satisfaction means the world to us, and we look forward to continuing to serve you and your family for all your water needs!
Best Regards,
Karen
APEC Customer Service
Had a leak between the head and the…
Had a leak between the head and the housing, I had a type A housing but they sent me a type B head not telling me that they don’t use Type A housing anymore so after 4 calls and about 2 1/2 weeks they finally sent me type B housing’s.Could have told me about all this on the first call and order.
December 11, 2025
Reply from APEC Water Systems
Dear Rob,
Thank you for your feedback, and we sincerely apologize for the inconvenience this caused. We truly appreciate your patience while we worked to resolve the issue, and we’re glad the correct Type B housings were eventually sent.
We take full responsibility for the miscommunication and are committed to providing a smoother, more efficient experience in the future. We truly value your support and look forward to serving you better moving forward.
Best Regards,
Karen
APEC Customer Service
Communication from this company was…
Communication from this company was excellent in keeping me informed as to delivery of requested products.
December 12, 2025
Reply from APEC Water Systems
Dear Charlie,
Thank you for your kind feedback! We’re thrilled to hear that our communication kept you well-informed throughout your order. We appreciate your support and look forward to serving you again!
Best Regards,
Karen
APEC Customer Service
Carbon filter, softener, R/O purchase
The instructions manuals are horrible! Products seem to be good,
December 12, 2025
Reply from APEC Water Systems
Dear Joel,
Thank you for your feedback! We’re glad to hear you’re happy with the quality of our products. We appreciate your comments about the manuals and are always looking to improve. Please feel free to reach out to us directly with any suggestions—we’d love to hear how we can make them clearer and more helpful.
Best Regards,
Karen
APEC Customer Service
Reply from APEC Water Systems
Dear Valued Customer,
We really appreciate your feedback! It’s great to hear you enjoyed our fast service and quality products. We look forward to helping your family enjoy clean water for years to come!
Best Regards,
Karen
APEC Customer Service
Installed the 6 filter system on my…
Installed the 6 filter system on my own. Easy to do following a YouTube video and water tastes great! Thanks guys. I do think the replacement o rings should come with filters and the smaller filter wrench for the 6th stage. Anything that is needed should come with filters as it’s cumbersome to have to go buy everything separately.
December 12, 2025
Reply from APEC Water Systems
Dear David,
Thank you so much for your wonderful feedback! We’re thrilled to hear that installation was easy and your water tastes great. We appreciate your suggestions and are always looking for ways to make our products even better. We look forward to serving your family’s water needs!
Best Regards,
Karen
APEC Customer Service
When someone has a water problem
When someone has a water problem, thay need parts quickly!!! You guys take forever!!!
In addition, your shipping costs are significantly higher than your actual cost! You are too greedy!
December 12, 2025
Reply from APEC Water Systems
Dear Stephen,
Thank you for sharing your feedback. According to our records, your order #S-505712 was placed on December 11 and successfully delivered on December 19. Please note that standard economy shipping typically takes 7–14 days.
We understand your concerns regarding shipping charges. APEC is a specialized manufacturer focused on high-quality water filtration systems and components. For orders under $49, a shipping fee is applied to help cover packaging, handling, and delivery costs. Larger companies can often absorb these costs more easily due to their scale.
To provide fair pricing and reliable service, we offer free shipping on all orders of $49 or more.
Best Regards,
Karen
APEC Customer Service
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