{"id":7232,"date":"2026-09-11T17:37:47","date_gmt":"2026-09-11T14:37:47","guid":{"rendered":"https:\/\/filtredeau.com\/product\/tank-power-membrane-cartridge-fourth-stage\/"},"modified":"2026-09-11T17:37:47","modified_gmt":"2026-09-11T14:37:47","slug":"tank-power-membrane-cartridge-fourth-stage","status":"publish","type":"product","link":"https:\/\/filtredeau.com\/en\/product\/tank-power-membrane-cartridge-fourth-stage\/","title":{"rendered":"Tank Power membrane cartridge \u2014 fourth stage"},"content":{"rendered":"<section class=\"fdw-maint\">\n<h2>When to use it<\/h2>\n<p>The membrane cartridge is changed every 12 to 18 months depending on the salinity of the water, that is at the yearly change of the seven-stage filter cartridges. <\/p>\n<p>Best value: the full-year pack \u2014 560 DH with free delivery.<\/p>\n<\/section>\n<h2>Why is it sold separately?<\/h2>\n<p>The membrane is the only component in a reverse-osmosis filter that reduces dissolved salts and limescale, and its life is longer than that of the other cartridges. That is why it is not part of the seven-stage cartridge pack and is ordered on its own.<\/p>\n<h2>What does it remove?<\/h2>\n<ul>\n<li>The dissolved salts that give water a salty taste.<\/li>\n<li>Bacteria and viruses.<\/li>\n<li>Heavy metals.<\/li>\n<\/ul>\n<p>The membrane pores are 0.0001 micron, four times finer than the membranes commonly found on the market. <\/p>\n<h2>When should it be changed?<\/h2>\n<p>Every 12 to 18 months depending on the salinity of the water in your area: the more salts there are, the shorter its life. The practical sign: a drop in the amount of purified water or the salty taste coming back.   <\/p>\n<h2>For which filter?<\/h2>\n<p>\u0641\u0644\u0627\u062a\u0631 \u0627\u0644\u062a\u0646\u0627\u0636\u062d \u0627\u0644\u0639\u0643\u0633\u064a: <a href=\"https:\/\/filtredeau.com\/en\/product\/home-water-filter-with-pressure-pump-in-morocco\/\">\u0627\u0644\u0641\u0644\u062a\u0631 \u0645\u0639 \u0645\u0636\u062e\u0629 \u0627\u0644\u0636\u063a\u0637<\/a> \u0648<a href=\"https:\/\/filtredeau.com\/en\/product\/%d9%81%d9%84%d8%aa%d8%b1-%d8%aa%d8%a7%d9%86%d9%83-%d8%a8%d8%b1%d9%88-ro-uv-%d8%ab%d9%85%d8%a7%d9%86%d9%8a-%d9%85%d8%b1%d8%a7%d8%ad%d9%84-%d8%aa%d9%86%d9%82%d9%8a%d8%a9\/\">\u062a\u0627\u0646\u0643 \u0628\u0631\u0648 RO + UV<\/a> \u0648\u0641\u0644\u0627\u062a\u0631 \u0627\u0644\u0633\u0628\u0639 \u0645\u0631\u0627\u062d\u0644.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Reverse-osmosis membrane with 0.0001 micron pores \u2014 the heart of the RO filter and its fourth stage. Sold separately from the seven-stage cartridge pack. <\/p>\n","protected":false},"featured_media":0,"comment_status":"open","ping_status":"closed","template":"","meta":{"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","ast-disable-related-posts":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"default","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}}},"product_brand":[],"product_cat":[352],"product_tag":[],"class_list":["post-7232","product","type-product","status-publish","product_cat-water-filter-cartridges","desktop-align-center","tablet-align-left","mobile-align-center","first","instock","sale","shipping-taxable","purchasable","product-type-simple"],"_links":{"self":[{"href":"https:\/\/filtredeau.com\/en\/wp-json\/wp\/v2\/product\/7232","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/filtredeau.com\/en\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/filtredeau.com\/en\/wp-json\/wp\/v2\/types\/product"}],"replies":[{"embeddable":true,"href":"https:\/\/filtredeau.com\/en\/wp-json\/wp\/v2\/comments?post=7232"}],"version-history":[{"count":0,"href":"https:\/\/filtredeau.com\/en\/wp-json\/wp\/v2\/product\/7232\/revisions"}],"wp:attachment":[{"href":"https:\/\/filtredeau.com\/en\/wp-json\/wp\/v2\/media?parent=7232"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/filtredeau.com\/en\/wp-json\/wp\/v2\/product_brand?post=7232"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/filtredeau.com\/en\/wp-json\/wp\/v2\/product_cat?post=7232"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/filtredeau.com\/en\/wp-json\/wp\/v2\/product_tag?post=7232"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}