{"id":3473,"date":"2019-12-23T09:00:06","date_gmt":"2019-12-23T09:00:06","guid":{"rendered":"https:\/\/oko-swiss.ch\/product\/filtering-flask\/"},"modified":"2026-09-21T08:34:54","modified_gmt":"2026-09-21T06:34:54","slug":"filtering-flask","status":"publish","type":"product","link":"https:\/\/gourdefiltrante.ch\/en\/product\/filtering-flask\/","title":{"rendered":"Gravity filter tank"},"content":{"rendered":"

Patented Swiss Technology<\/h3>\n

Advanced filtration technology developed in Switzerland and designed to act on a broad spectrum of contaminants.<\/p>\n

247 Documented Contaminants and Parameters<\/h3>\n

PFAS, pesticides, pharmaceutical residues, heavy metals, micro- and nanoplastics, bacteria, viruses, and other parameters have been subject to documented testing.<\/p>\n

Fast Filtration<\/h3>\n

A flow rate of up to 0.3 litres per minute<\/strong>, making filtration significantly faster than many conventional gravity-fed systems.<\/p>\n

Up to 4,000 Litres per Cartridge<\/h3>\n

The cartridge is designed to maintain its performance for up to 4,000 litres of filtered water<\/strong>, with replacement recommended after 12 months for hygiene reasons.<\/p>\n

No Electricity or Plumbing Required<\/h3>\n

Nano operates solely by gravity: no electricity, no pressure, and no connection to the water supply<\/strong> are required.<\/p>\n

Food-Grade Stainless Steel<\/h3>\n

The tank is made from food-grade AISI 304 stainless steel<\/strong>, with no plastic in contact with the water at tank level.<\/p>\n

Installation in Just a Few Minutes<\/h3>\n

The system is designed for simple, tool-free installation<\/strong> and can be used immediately.<\/p>\n

Three Capacities<\/h3>\n

6 L<\/strong> for 1\u20132 people, 9 L<\/strong> for 3\u20134 people, and 12 L<\/strong> for 5\u20136 people or more. The filtration technology remains identical across all three models.<\/p>\n","protected":false},"excerpt":{"rendered":"

Patented Swiss Technology Advanced filtration technology developed in Switzerland and designed to act on a broad spectrum of contaminants. 247 Documented Contaminants and Parameters PFAS, pesticides, pharmaceutical residues, heavy metals, micro- and nanoplastics, bacteria, viruses, and other parameters have been subject to documented testing. Fast Filtration A flow rate of up to 0.3 litres per […]<\/p>\n","protected":false},"featured_media":7767,"comment_status":"open","ping_status":"closed","template":"","meta":{"_acf_changed":false},"product_brand":[],"product_cat":[],"product_tag":[],"class_list":["post-3473","product","type-product","status-publish","has-post-thumbnail","first","instock","taxable","shipping-taxable","product-type-external"],"acf":[],"yoast_head":"\nGravity filter tank - Gourde filtrante \u00f6ko<\/title>\n<meta name=\"description\" content=\"Discover Nano, the Swiss-patented gravity water filter delivering fast, high-performance filtration on 247 contaminants, with up to 4,000 litres per cartridge.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/gourdefiltrante.ch\/en\/product\/filtering-flask\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Gravity filter tank - 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