Waslix is an American owned and managed company located on the east coast in Pittsburgh, PA.
The original CuZn Filtration Company is no longer operating. We have improved upon the original CuZn Water Filters by using premium filtration media to adsorb more impurities from your water. The new water filters last longer with overall cleaner water.
water treatment poe replace filter
filter housings 45x20 grey

STANDARD SIZE. EXCEPTIONAL FILTRATION QUALITY.

Our Jumbo Point-Of-Entry filtration cartridges are compatible with almost every type of 4.5x20 POE filter housing systems



 

replace your water filter with better media

"Every water filter system makes tap water taste better", CUZN Filter uses premium filtration media to remove more contaminants for better-tasting water you'll actually enjoy drinking, while making your water filter last noticeably longer than what you have been used to.

Nitrate and Nitrite

Nitrate and Nitrite

Original Price
$ 460.00
Price
$ 300.00
Model: NN-4520  |  Size: 4.5x20

No Nitrates, No Nonsense – Just Clean, Safe Water. Let our filter handle your nitrate adsorption.
SKU:
NN-4520

Clean Water Without Chemicals: Nitrate-Selective Resin + Natural Ceramic Filtration. Our Dual Filtration adsorbs Nitrates and Heavy Metals

Replaceable Water Filter Cartridge. quick change drop in filter



cuzn replace filter 45x20


Nobody wants nitrates in their water—especially since they can sneak in from farm runoff, industrial waste, or even natural sources. High nitrate levels are especially risky for babies and pregnant women. Our nitrate resin acts like a smart trap, swapping those harmful nitrates for safer chloride ions (the natural, harmless form of chlorine found in water, salt, and even your body. Chloride ions won’t make water taste or smell weird).

Unlike basic filters that might let nitrates slip back into your water, this special resin holds onto them tightly—even in low-mineral water—so you get cleaner, better-tasting water every time. Plus, it’s eco-friendly and certified safe for drinking.

Want extra protection? Pair it with our ceramic spheres—tiny but mighty filters that also grab nitrates, along with nasty stuff like lead, pesticides, and sulfates. They even balance your water’s PH and add helpful minerals! Easy to drop into your existing filter, these durable little power-ups make water safety simple for homes or large systems.


filter housings 45x20
Nitrate Resin
alumina
Nitrate resin provides an effective solution for removing dangerous nitrates from water caused by agricultural runoff, industrial waste, or natural deposits. Using specialized ion exchange technology, it selectively traps nitrate molecules while releasing safer chloride ions—preventing the "nitrate dumping" issue common with standard resins.

These nitrate-selective resins maintain high performance even in low-TDS water to help  ensure safer drinking water compliance. By reliably filtering out nitrates without harsh chemicals, this eco-friendly solution helps protect against health risks while delivering cleaner, better-tasting water.
Improved Ion Exchange Ceramic Spheres
fluoride
These special ceramic balls work like tiny water purifiers, pulling out the bad stuff and leaving the good behind. They remove dangerous metals like lead and mercury, and filter out nitrates, sulfates, and even pesticides. But they don't stop there - they can actually improve your water by balancing PH levels and releasing beneficial minerals.

What makes them really useful is how easily they fit into existing water filters, working alongside other systems to provide cleaner, safer water without any extra hassle. Tough and long-lasting, these ceramic spheres offer a simple way to upgrade your water quality at home or in larger filtration systems.
 

Seriously,
better filtration media is critical to cleaner water

Account Profile


cuzn waslix logo
“CUZN Filter” lends its name from the discovery of KDF in the early 1980’s. KDF is a high-purity copper-zinc (CuZn) alloy that uses redox chemistry to adsorb contaminants from water.

CuZnFilters.com managed by Waslix, LLC

Our philosophy is to foster a strong association between how clearly clean water will have a healthy biological influence on our bodies and preventative repairs and maintenance to homes and businesses.

Connect with us:

412-848-5058   |   Sales@Waslix.com 
Located in Pittsburgh, PA