{"id":2337,"date":"2026-02-23T16:24:05","date_gmt":"2026-02-23T16:24:05","guid":{"rendered":"https:\/\/tqwater.co.za\/?post_type=product&#038;p=2337"},"modified":"2026-03-21T16:42:58","modified_gmt":"2026-03-21T16:42:58","slug":"white-domestic-reverse-osmosis-membrane-housing-3012","status":"publish","type":"product","link":"https:\/\/tqwater.co.za\/?product=white-domestic-reverse-osmosis-membrane-housing-3012","title":{"rendered":"Reverse Osmosis Membrane Housing 2012 2 x12&#8243;  (100\u2013200GPD)."},"content":{"rendered":"<p data-path-to-node=\"0\">The <b data-path-to-node=\"0\" data-index-in-node=\"4\">1812 \/ 2012 RO Membrane Housing<\/b> is the global standard for residential water purification. These two numbers are often used interchangeably because most modern housings are &#8220;universal&#8221; and designed to fit both membrane sizes.<\/p>\n<hr data-path-to-node=\"1\" \/>\n<h2 data-path-to-node=\"2\">Standard 1812\/2012 White RO Housing<\/h2>\n<p data-path-to-node=\"3\"><b data-path-to-node=\"3\" data-index-in-node=\"0\">Compatibility:<\/b> 24 GPD to 150 GPD Membranes<\/p>\n<p data-path-to-node=\"4\">This is the most common pressure vessel found in under-sink RO systems. It is engineered to hold a single spiral-wound membrane element.<\/p>\n<ul data-path-to-node=\"5\">\n<li>\n<p data-path-to-node=\"5,0,0\"><b data-path-to-node=\"5,0,0\" data-index-in-node=\"0\">Description:<\/b> A high-strength, injection-molded polypropylene housing. It features a ribbed screw-cap with a <b data-path-to-node=\"5,0,0\" data-index-in-node=\"108\">Double O-Ring<\/b> seal to prevent leaks under the constant pressure of a home water line. It typically has three ports: one <b data-path-to-node=\"5,0,0\" data-index-in-node=\"228\">Inlet<\/b> (Feed Water), one <b data-path-to-node=\"5,0,0\" data-index-in-node=\"252\">Permeate<\/b> (Clean Water), and one <b data-path-to-node=\"5,0,0\" data-index-in-node=\"284\">Concentrate<\/b> (Waste Water).<\/p>\n<\/li>\n<li>\n<p data-path-to-node=\"5,1,0\"><b data-path-to-node=\"5,1,0\" data-index-in-node=\"0\">Uses &amp; Applications:<\/b><\/p>\n<ul data-path-to-node=\"5,1,1\">\n<li>\n<p data-path-to-node=\"5,1,1,0,0\"><b data-path-to-node=\"5,1,1,0,0\" data-index-in-node=\"0\">Standard Under-Sink RO:<\/b> The core component of 5-stage or 6-stage home systems.<\/p>\n<\/li>\n<li>\n<p data-path-to-node=\"5,1,1,1,0\"><b data-path-to-node=\"5,1,1,1,0\" data-index-in-node=\"0\">Aquarium\/RODI Systems:<\/b> Used to produce ultra-pure water for reef tanks.<\/p>\n<\/li>\n<li>\n<p data-path-to-node=\"5,1,1,2,0\"><b data-path-to-node=\"5,1,1,2,0\" data-index-in-node=\"0\">Countertop RO Units:<\/b> Compact water purifiers.<\/p>\n<\/li>\n<\/ul>\n<\/li>\n<li>\n<p data-path-to-node=\"5,2,0\"><b data-path-to-node=\"5,2,0\" data-index-in-node=\"0\">Benefits:<\/b><\/p>\n<ul data-path-to-node=\"5,2,1\">\n<li>\n<p data-path-to-node=\"5,2,1,0,0\"><b data-path-to-node=\"5,2,1,0,0\" data-index-in-node=\"0\">Universal Fit:<\/b> Accommodates all major brands (Dow Filmtec, Vontron, CSM, etc.) in the 1812 or 2012 size.<\/p>\n<\/li>\n<li>\n<p data-path-to-node=\"5,2,1,1,0\"><b data-path-to-node=\"5,2,1,1,0\" data-index-in-node=\"0\">Tool-Free Maintenance:<\/b> Most caps are textured for hand-tightening (though a housing wrench is often included for removal).<\/p>\n<\/li>\n<li>\n<p data-path-to-node=\"5,2,1,2,0\"><b data-path-to-node=\"5,2,1,2,0\" data-index-in-node=\"0\">Corrosion Proof:<\/b> Made from food-grade plastic that handles chlorine and various water chemistries without degrading.<\/p>\n<\/li>\n<\/ul>\n<\/li>\n<li>\n<p data-path-to-node=\"5,3,0\"><b data-path-to-node=\"5,3,0\" data-index-in-node=\"0\">Size &amp; Dimensions:<\/b><\/p>\n<ul data-path-to-node=\"5,3,1\">\n<li>\n<p data-path-to-node=\"5,3,1,0,0\"><b data-path-to-node=\"5,3,1,0,0\" data-index-in-node=\"0\">Internal Diameter:<\/b> ~2.0&#8243; (5.1 cm)<\/p>\n<\/li>\n<li>\n<p data-path-to-node=\"5,3,1,1,0\"><b data-path-to-node=\"5,3,1,1,0\" data-index-in-node=\"0\">Length:<\/b> ~12&#8243; (30.5 cm)<\/p>\n<\/li>\n<li>\n<p data-path-to-node=\"5,3,1,2,0\"><b data-path-to-node=\"5,3,1,2,0\" data-index-in-node=\"0\">Port Size:<\/b> Usually 1\/8&#8243; or 1\/4&#8243; NPT Female Threads.<\/p>\n<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<hr data-path-to-node=\"6\" \/>\n<h3 data-path-to-node=\"7\">Understanding the Numbers (1812 vs. 2012)<\/h3>\n<p data-path-to-node=\"8\">While the housing is usually the same, the numbers refer to the <b data-path-to-node=\"8\" data-index-in-node=\"64\">Membrane<\/b> dimensions:<\/p>\n<ul data-path-to-node=\"9\">\n<li>\n<p data-path-to-node=\"9,0,0\"><b data-path-to-node=\"9,0,0\" data-index-in-node=\"0\">1812:<\/b> Approximately <b data-path-to-node=\"9,0,0\" data-index-in-node=\"20\">1.8&#8243;<\/b> diameter and <b data-path-to-node=\"9,0,0\" data-index-in-node=\"38\">12&#8243;<\/b> long. (Typical for 50\u201375 GPD).<\/p>\n<\/li>\n<li>\n<p data-path-to-node=\"9,1,0\"><b data-path-to-node=\"9,1,0\" data-index-in-node=\"0\">2012:<\/b> Approximately <b data-path-to-node=\"9,1,0\" data-index-in-node=\"20\">2.0&#8243;<\/b> diameter and <b data-path-to-node=\"9,1,0\" data-index-in-node=\"38\">12&#8243;<\/b> long. (Typical for 100\u2013150 GPD)<\/p>\n<\/li>\n<\/ul>\n","protected":false},"excerpt":{"rendered":"<p>The 1812 \/ 2012 RO Membrane Housing is the global standard for residential water purification. These two numbers are often used interchangeably because most modern housings are &#8220;universal&#8221; and designed to fit both membrane sizes. Standard 1812\/2012 White RO Housing Compatibility: 24 GPD to 150 GPD Membranes This is the most common pressure vessel found [&hellip;]<\/p>\n","protected":false},"featured_media":2334,"comment_status":"open","ping_status":"closed","template":"","meta":[],"product_brand":[],"product_cat":[184],"product_tag":[],"class_list":["post-2337","product","type-product","status-publish","has-post-thumbnail","product_cat-empty-filter-cartridge-housing","first","instock","shipping-taxable","product-type-simple"],"_links":{"self":[{"href":"https:\/\/tqwater.co.za\/index.php?rest_route=\/wp\/v2\/product\/2337","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/tqwater.co.za\/index.php?rest_route=\/wp\/v2\/product"}],"about":[{"href":"https:\/\/tqwater.co.za\/index.php?rest_route=\/wp\/v2\/types\/product"}],"replies":[{"embeddable":true,"href":"https:\/\/tqwater.co.za\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=2337"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/tqwater.co.za\/index.php?rest_route=\/wp\/v2\/media\/2334"}],"wp:attachment":[{"href":"https:\/\/tqwater.co.za\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=2337"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/tqwater.co.za\/index.php?rest_route=%2Fwp%2Fv2%2Fproduct_brand&post=2337"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/tqwater.co.za\/index.php?rest_route=%2Fwp%2Fv2%2Fproduct_cat&post=2337"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/tqwater.co.za\/index.php?rest_route=%2Fwp%2Fv2%2Fproduct_tag&post=2337"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}