Four stages. Zero compromise.
Each SYNONX cartridge contains four distinct filtration media, layered in sequence to remove contaminants that single-stage filters miss. No fillers. No gimmicks. Just science.
KDF-55
Kinetic Degradation Fluxion
A high-purity copper-zinc alloy that uses redox (oxidation-reduction) reactions to neutralize contaminants on contact. Highly effective even at hot shower temperatures where other media fail.
Targets
- Lead & mercury
- Bacteria & fungi
- Hydrogen sulfide
Temperature
Effective up to 50°C / 122°F
Calcium Sulfite
Primary Dechlorination
Our primary chlorine removal stage. Calcium sulfite reacts with free chlorine on a molecular level, converting it to harmless calcium chloride. Engineered for maximum temperature stability.
Targets
- Free chlorine (up to 99%)
- Chlorine dioxide
- Residual disinfectants
Temperature
Stable performance at all shower temperatures
Coconut Shell Activated Carbon
Adsorption Filtration
Sustainably sourced coconut shell carbon with an enormous surface area for adsorption. Captures chemical compounds that pass through the first two stages, including chloramines and VOCs.
Targets
- Chloramines
- Volatile organic compounds (VOCs)
- Chemical odors & taste
Temperature
Optimal at temperatures below 40°C / 104°F
Vitamin C Ceramic Balls
Antioxidant Infusion
The final stage infuses your water with ascorbic acid (Vitamin C), a powerful antioxidant that neutralizes any remaining chlorine while delivering skin-nourishing benefits directly to your body.
Targets
- Residual chlorine
- Oxidative stress compounds
- Free radicals in water
Temperature
Active at all temperatures
Specifications
Cartridge Life
6 months
Flow Rate
8–10 L/min
Thread Standard
G1/2 Universal
Housing Material
ABS + Brass
Certifications
CE, RoHS
Installation
Tool-free, 2 minutes
Why multi-stage matters.
Most shower filters use a single filtration medium — typically just KDF or calcium sulfite alone. They remove some chlorine, but leave behind heavy metals, VOCs, and chemical byproducts that continue to affect your skin and hair.
SYNONX layers four complementary media in a precise sequence. Each stage targets a different category of contaminant, and each is positioned to work at optimal efficiency based on the water flow and temperature at that point in the cartridge.
The result: comprehensive filtration that single-stage competitors simply cannot match.
Experience the difference.
30-day returns. 6-month cartridge life. Free shipping on subscriptions.
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