{"product_id":"1812-50-gpd-vontron-reverse-osmosis-membrane","title":"1812 50 GPD Vontron Reverse Osmosis Membrane","description":"\u003ch1\u003eVontron 1812 50 GPD \u003ca href=\"https:\/\/puritech.co.za\/product-category\/ro-membrane-elements\/vontron-membranes\/\"\u003eRO Membrane\u003c\/a\u003e – Compact 1.8″×12″\u003c\/h1\u003e \u003cp\u003eThe Vontron 1812 50 GPD RO Membrane is a compact, high-quality reverse osmosis element sized \u003cstrong data-start=\"602\" data-end=\"632\"\u003e1.8″ diameter × 12″ length\u003c\/strong\u003e (designated “1812”), specifically engineered for residential or small point-of-use systems. It delivers approximately \u003cstrong data-start=\"751\" data-end=\"779\"\u003e50 gallons per day (GPD)\u003c\/strong\u003e under standard test conditions, with a stable salt rejection of around \u003cstrong data-start=\"851\" data-end=\"858\"\u003e97%\u003c\/strong\u003e. Designed for low-salinity sources such as municipal tap water or shallow wells, this membrane is ideal when space is limited but water purity remains essential.\u003c\/p\u003e \u003ch3 data-start=\"1067\" data-end=\"1084\"\u003eKey Features\u003c\/h3\u003e \u003cul\u003e \u003cli data-start=\"1087\" data-end=\"1156\"\u003eCompact 1.8″ × 12″ (1812 format) — perfect for tight installations.\u003c\/li\u003e \u003cli data-start=\"1159\" data-end=\"1256\"\u003eRated output: ~50 GPD (~190 L\/day) under test conditions.\u003c\/li\u003e \u003cli data-start=\"1259\" data-end=\"1367\"\u003eSalt rejection: ~97% stable; minimum ~96% under standard conditions.\u003c\/li\u003e \u003cli data-start=\"1370\" data-end=\"1452\"\u003eLow-pressure design enabling integration into cost-sensitive or smaller systems.\u003c\/li\u003e \u003cli data-start=\"1455\" data-end=\"1551\"\u003eSuitable for residential uses: under-sink, countertop, small lab or office water purification.\u003c\/li\u003e \u003c\/ul\u003e \u003ch3 data-start=\"1558\" data-end=\"1587\"\u003eTechnical Specifications\u003c\/h3\u003e \u003cdiv class=\"_tableContainer_1rjym_1\"\u003e \u003cdiv class=\"group _tableWrapper_1rjym_13 flex w-fit flex-col-reverse\"\u003e \u003ctable class=\"w-fit min-w-(--thread-content-width)\" data-start=\"1589\" data-end=\"3162\"\u003e \u003cthead data-start=\"1589\" data-end=\"1688\"\u003e \u003ctr data-start=\"1589\" data-end=\"1688\"\u003e \u003cth data-start=\"1589\" data-end=\"1624\" data-col-size=\"sm\"\u003eParameter\u003c\/th\u003e \u003cth data-start=\"1624\" data-end=\"1688\" data-col-size=\"md\"\u003eValue\u003c\/th\u003e \u003c\/tr\u003e \u003c\/thead\u003e \u003ctbody data-start=\"1789\" data-end=\"3162\"\u003e \u003ctr data-start=\"1789\" data-end=\"1888\"\u003e \u003ctd data-start=\"1789\" data-end=\"1824\" data-col-size=\"sm\"\u003eModel\u003c\/td\u003e \u003ctd data-start=\"1824\" data-end=\"1888\" data-col-size=\"md\"\u003eULP1812-50\u003c\/td\u003e \u003c\/tr\u003e \u003ctr data-start=\"1889\" data-end=\"1988\"\u003e \u003ctd data-start=\"1889\" data-end=\"1924\" data-col-size=\"sm\"\u003eFormat\u003c\/td\u003e \u003ctd data-start=\"1924\" data-end=\"1988\" data-col-size=\"md\"\u003e1.8″ diameter × 12″ length\u003c\/td\u003e \u003c\/tr\u003e \u003ctr data-start=\"1989\" data-end=\"2097\"\u003e \u003ctd data-start=\"1989\" data-end=\"2024\" data-col-size=\"sm\"\u003eRated Permeate Flow\u003c\/td\u003e \u003ctd data-start=\"2024\" data-end=\"2097\" data-col-size=\"md\"\u003e~50 GPD (~190 L\/day)\u003c\/td\u003e \u003c\/tr\u003e \u003ctr data-start=\"2098\" data-end=\"2196\"\u003e \u003ctd data-start=\"2098\" data-end=\"2133\" data-col-size=\"sm\"\u003eStable Salt Rejection\u003c\/td\u003e \u003ctd data-start=\"2133\" data-end=\"2196\" data-col-size=\"md\"\u003e≈ 97%\u003c\/td\u003e \u003c\/tr\u003e \u003ctr data-start=\"2197\" data-end=\"2295\"\u003e \u003ctd data-start=\"2197\" data-end=\"2232\" data-col-size=\"sm\"\u003eMinimum Salt Rejection\u003c\/td\u003e \u003ctd data-start=\"2232\" data-end=\"2295\" data-col-size=\"md\"\u003e≈ 96%\u003c\/td\u003e \u003c\/tr\u003e \u003ctr data-start=\"2296\" data-end=\"2429\"\u003e \u003ctd data-start=\"2296\" data-end=\"2331\" data-col-size=\"sm\"\u003eTest Conditions\u003c\/td\u003e \u003ctd data-start=\"2331\" data-end=\"2429\" data-col-size=\"md\"\u003e60 psi (~0.41 MPa), 25 °C, 250–500 ppm NaCl, pH ~6.5–7.5\u003c\/td\u003e \u003c\/tr\u003e \u003ctr data-start=\"2430\" data-end=\"2551\"\u003e \u003ctd data-start=\"2430\" data-end=\"2465\" data-col-size=\"sm\"\u003eMaximum Feed Pressure\u003c\/td\u003e \u003ctd data-start=\"2465\" data-end=\"2551\" data-col-size=\"md\"\u003e~200 psi (~2.0 MPa)\u003c\/td\u003e \u003c\/tr\u003e \u003ctr data-start=\"2552\" data-end=\"2650\"\u003e \u003ctd data-start=\"2552\" data-end=\"2587\" data-col-size=\"sm\"\u003eMaximum Feed Temperature\u003c\/td\u003e \u003ctd data-start=\"2587\" data-end=\"2650\" data-col-size=\"md\"\u003e45 °C\u003c\/td\u003e \u003c\/tr\u003e \u003ctr data-start=\"2651\" data-end=\"2749\"\u003e \u003ctd data-start=\"2651\" data-end=\"2686\" data-col-size=\"sm\"\u003eMaximum SDI (Silt Density Index)\u003c\/td\u003e \u003ctd data-start=\"2686\" data-end=\"2749\" data-col-size=\"md\"\u003e≤ 5\u003c\/td\u003e \u003c\/tr\u003e \u003ctr data-start=\"2750\" data-end=\"2848\"\u003e \u003ctd data-start=\"2750\" data-end=\"2785\" data-col-size=\"sm\"\u003eFree Chlorine in Feed\u003c\/td\u003e \u003ctd data-start=\"2785\" data-end=\"2848\" data-col-size=\"md\"\u003e\u0026lt; 0.1 ppm\u003c\/td\u003e \u003c\/tr\u003e \u003ctr data-start=\"2849\" data-end=\"2947\"\u003e \u003ctd data-start=\"2849\" data-end=\"2884\" data-col-size=\"sm\"\u003eFeed pH Range (Operation)\u003c\/td\u003e \u003ctd data-start=\"2884\" data-end=\"2947\" data-col-size=\"md\"\u003e3 – 10\u003c\/td\u003e \u003c\/tr\u003e \u003ctr data-start=\"2948\" data-end=\"3046\"\u003e \u003ctd data-start=\"2948\" data-end=\"2983\" data-col-size=\"sm\"\u003eFeed pH Range (Cleaning)\u003c\/td\u003e \u003ctd data-start=\"2983\" data-end=\"3046\" data-col-size=\"md\"\u003e2 – 11\u003c\/td\u003e \u003c\/tr\u003e \u003ctr data-start=\"3047\" data-end=\"3162\"\u003e \u003ctd data-start=\"3047\" data-end=\"3087\" data-col-size=\"sm\"\u003eMaximum Pressure Drop Single Membrane\u003c\/td\u003e \u003ctd data-start=\"3087\" data-end=\"3162\" data-col-size=\"md\"\u003e~10 psi (~0.07 MPa)\u003c\/td\u003e \u003c\/tr\u003e \u003c\/tbody\u003e \u003c\/table\u003e \u003c\/div\u003e \u003c\/div\u003e \u003ch3 data-start=\"3169\" data-end=\"3221\"\u003eWhy Choose the Vontron 1812 50 GPD RO Membrane?\u003c\/h3\u003e \u003cp data-start=\"3222\" data-end=\"3632\"\u003eOpting for the Vontron 1812 50 GPD RO Membrane means choosing a \u003cstrong data-start=\"3286\" data-end=\"3302\"\u003espace-saving\u003c\/strong\u003e, \u003cstrong data-start=\"3304\" data-end=\"3323\"\u003ehigh-efficiency\u003c\/strong\u003e RO element that delivers meaningful purification in a compact format. Because it’s designed for low-salinity feed water and works at modest pressure, it’s ideal for residential installations where footprint and cost matter. The strong rejection rate ensures water quality without needing oversized systems.\u003c\/p\u003e \u003ch3 data-start=\"3639\" data-end=\"3675\"\u003eInstallation \u0026amp; Maintenance Tips\u003c\/h3\u003e \u003col\u003e \u003cli data-start=\"3679\" data-end=\"3771\"\u003ePre-treat feed water: ensure SDI ≤ 5 and free chlorine \u0026lt; 0.1 ppm to protect membrane life.\u003c\/li\u003e \u003cli data-start=\"3775\" data-end=\"3866\"\u003eOn first use, flush the new membrane per manufacturer guidelines; discard early permeate.\u003c\/li\u003e \u003cli data-start=\"3870\" data-end=\"3991\"\u003eMonitor the permeate flow and salt rejection; if performance drops significantly, check for fouling, scaling or damage.\u003c\/li\u003e \u003cli data-start=\"3995\" data-end=\"4088\"\u003eMaintain temperature, pressure, and pH within specified limits to prolong membrane lifespan.\u003c\/li\u003e \u003cli data-start=\"4092\" data-end=\"4197\"\u003eIf the membrane will be unused for some time, store it \u003cstrong data-start=\"4147\" data-end=\"4194\"\u003ewet or in an approved preservative solution\u003c\/strong\u003e.\u003c\/li\u003e \u003c\/ol\u003e","brand":"Vontron","offers":[{"title":"Default","offer_id":45115709063237,"sku":"ULP1812-50","price":182.16,"currency_code":"ZAR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0739\/8627\/7445\/files\/vontronulp-1812-50.jpg?v=1780903309","url":"https:\/\/www.monstermechanical.co.za\/products\/1812-50-gpd-vontron-reverse-osmosis-membrane","provider":"Monster Mechanical","version":"1.0","type":"link"}