At Epic Water Filters, we believe consumers deserve transparency about the water filters they use every single day. Recently, we cut open one of the AquaCrest replacement filters next to our USA-made Epic Pure XP filter to compare the internal construction, materials, and overall build quality. Honestly, some of the differences were surprising.

The first thing we noticed was the overall weight. The AquaCrest filter weighed 0.054 KG, while the Epic Pure XP weighed 0.082 KG, more than 50% heavier. In water filtration, added weight often means more filtration media, thicker construction, and more robust internal components.

We also measured the filter wall thickness. The AquaCrest filter measured 7.27mm, while the Epic Pure XP measured 21.17mm thick, nearly three times thicker. When you physically hold and cut these filters apart side-by-side, the difference is immediately noticeable.

But what matters even more than thickness is what these filters are actually made from.

The Epic Pure XP is proudly made in the USA inside an NSF-certified manufacturing facility. That matters because NSF-certified factories are required to maintain strict quality standards, material traceability, manufacturing controls, and ongoing auditing processes. Water filters are not just about contaminant reduction they are also about making sure the product itself is safe.

That is why the Epic Pure XP is certified to NSF International NSF/ANSI 42 for material safety. This certification verifies that the materials used in the filter are safe for contact with drinking water and are not leaching harmful contaminants back into your water over time.

The Epic Pure XP uses our trademarked CoreXchange™ Technology, an advanced dual-layer filtration system designed to tackle a broad range of contaminants. The outer nanofiber layers are engineered to help remove microbiological contaminants like bacteria, viruses, giardia, cryptosporidium, and microplastics, while the internal carbon fiber block targets heavy metals, PFAS, chlorine, pesticides, herbicides, VOCs, and more. Unlike older traditional carbon block designs, CoreXchange™ Technology combines multiple filtration approaches into one integrated system for improved performance and consistency. 

AquaCrest filters rely on older carbon block technology that has historically shown inconsistency in manufacturing quality, especially when products are not NSF certified and not produced inside an NSF-certified manufacturing facility with ongoing quality controls and material verification.

Epic uses food-safe polypropylene for our filter housing material because polypropylene is considered one of the gold standards for water filtration products. It is highly stable, durable, and widely used in NSF-certified systems. In our experience, premium water filtration products almost always rely on polypropylene because it is one of the best materials available for drinking water applications.

AquaCrest filters, on the other hand, use ABS plastic construction. ABS is commonly used in lower-cost products because it is inexpensive and easy to manufacture, but it is generally not the preferred material for premium drinking water filtration systems.

Additionally, Epic uses NSF 61 and FDA-compliant filtration media inside our filters. NSF 61 certification is important because it verifies that materials coming into contact with drinking water meet strict safety standards. We believe consumers should know not only what a filter removes from water, but also what materials are being used inside the filter itself.

AquaCrest does not appear to have NSF certification on these filters, and we could not find transparency around whether NSF 61-certified filtration media is being used. Without independent certification and testing, consumers are left to trust marketing claims rather than verified standards.

At Epic Water Filters, we believe independent third-party testing matters. The Epic Pure XP has been tested in multiple accredited laboratories to NSF standards including NSF/ANSI 42, 53, 401, P231, and P473 protocols for a wide range of contaminants and performance claims. 

These standards cover everything from chlorine reduction and heavy metals to PFAS, emerging contaminants, and microbiological protection. Independent testing helps verify that a filter actually performs as advertised under real-world conditions. In researching AquaCrest replacement filters, we could not find publicly available independent testing to these same standards or evidence of equivalent NSF certification on the finished filter. At the end of the day, water filters should not be a guessing game. Make sure your filter works, or your body becomes the filter.