GuardFlow Diatom Block Filter

Sana Vida - Healthy Life.

Our GuardFlow ceramic carbon block filter is built for wells and city water in areas with heavy farming or industry. Its carbon block core keeps water in contact with the filter longer, for more consistent reductions over the life of the filter, while the ceramic shell traps sediment and cloudiness. For city water with generally good quality, our EverFlow filter offers faster flow, and for PFAS or microorganisms, our PureFlow filter.

Choose your size

• Turret: 2" x 7", up to 500 gallons per filter; fits up to 4 per Sana Vida system
• Citadel: 2.75" x 7", up to 800 gallons per filter; fits up to 2 per Sana Vida system

How the GuardFlow filters work

Each filter pairs a silver-infused ceramic shell with a dense carbon block core. Because water has to pass through the carbon block wall, it stays in contact with the filter longer, giving more consistent results than our granular EverFlow filters. Tested to NSF/ANSI Standards 42, 53, and 401, they reduce:

• Chlorine: more than 99%
• Chloramine: more than 99%
• Lead: more than 99%
• Pharmaceuticals: more than 99%
• PFOA and PFOS: more than 99%
• Microplastics: more than 99%
• Heavy metals: more than 98%
• VOCs: more than 98%
• Trihalomethanes (THMs): more than 98%
• Glyphosate: more than 98%
• Pesticides and herbicides: more than 98%
• PFAS: more than 95%
• Radionuclides: more than 94%
• Nitrates: more than 92%
• Fluoride, including all common types added to tap water: more than 92%

The filters also reduce aluminum, arsenic, cadmium, mercury, nickel, and zinc.

Filter details

• Shell: silver-infused ceramic, 0.5 micron absolute, with more than 99.9% efficiency at 0.2 micron; can be scrubbed clean
• Core: carbon block; no activated alumina
• Certification: filter materials certified to NSF/ANSI Standard 42 material requirements
• Fits: all Sana Vida copper water filtration systems
• Made in: the USA for Sertodo

Good to know: Before first use, run two full chambers of water through the new filters and give it to your plants to rinse away any taste. The carbon block filters more slowly than our EverFlow filters. Replace each filter at its rated capacity or once a year, and scrub the ceramic between replacements to restore flow. Most systems use 2 filters; use 4 Turret filters for faster flow. Save 10% on filters bought with a Sana Vida system.