{"product_id":"pallas-lp-4021-4-x-21-reverse-osmosis-membrane-element","title":"Pallas LP 4021 4\" x 21\" Reverse Osmosis Membrane Element","description":"\u003ch1\u003ePallas LP 4021 4\" x 21\" Reverse Osmosis Membrane Element | 4021 Membrane\u003c\/h1\u003e\n\u003ch2\u003eHigh Performance 4021 Membrane for Commercial Reverse Osmosis Systems\u003c\/h2\u003e\n\u003cp\u003eThe \u003cstrong\u003ePallas LP 4021 4021 membrane\u003c\/strong\u003e is a premium low-pressure reverse osmosis membrane element designed for high-capacity commercial water treatment systems. Delivering excellent water production and outstanding salt rejection, this membrane provides reliable, energy-efficient performance for a wide range of purification applications.\u003c\/p\u003e\n\u003cp\u003eWith a standard \u003cstrong\u003e4\" x 21\"\u003c\/strong\u003e configuration, the \u003cstrong\u003ePallas LP 4021 membrane\u003c\/strong\u003e produces up to \u003cstrong\u003e950 GPD (3.6 m³\/day)\u003c\/strong\u003e while maintaining an impressive \u003cstrong\u003e99.3% stable salt rejection\u003c\/strong\u003e, making it an ideal choice for businesses that require consistent, high-quality purified water.\u003c\/p\u003e\n\u003chr\u003e\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003eHigh-performance \u003cstrong\u003e4021 membrane\u003c\/strong\u003e element\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eStandard \u003cstrong\u003e4\" x 21\"\u003c\/strong\u003e membrane size\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eProduces up to \u003cstrong\u003e950 GPD (3.6 m³\/day)\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e99.3% stable salt rejection\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eLow-pressure operation reduces energy consumption\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eThin-film composite membrane technology\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eDesigned for commercial and industrial RO systems\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eCompatible with standard 4\" x 21\" membrane housings\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eReliable long service life with consistent water quality\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr\u003e\n\u003ch2\u003eIdeal Applications\u003c\/h2\u003e\n\u003cp\u003eThe Pallas LP 4021 membrane is suitable for:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003eCommercial reverse osmosis systems\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eIndustrial water purification\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eFood and beverage processing\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003ePharmaceutical and laboratory water systems\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eHospitality and catering\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eBottled water production\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eProcess water treatment\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eCar wash and rinse water systems\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr\u003e\n\u003ch2\u003eBenefits of the Pallas LP 4021 Membrane\u003c\/h2\u003e\n\u003cp\u003eThe Pallas LP 4021 membrane delivers:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003eHigh water production of up to \u003cstrong\u003e950 GPD\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eExcellent removal of dissolved salts and impurities\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eLow-pressure operation for lower energy costs\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eReliable long-term performance\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eEasy installation into standard 4021 membrane housings\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eHigh-quality purified water for demanding applications\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr\u003e\n\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003cth\u003eValue\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eModel\u003c\/td\u003e\n\u003ctd\u003ePallas LP 4021\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMembrane Size\u003c\/td\u003e\n\u003ctd\u003e4\" x 21\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDaily Permeate Flow\u003c\/td\u003e\n\u003ctd\u003e950 GPD (3.6 m³\/day)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eStable Salt Rejection\u003c\/td\u003e\n\u003ctd\u003e99.3%\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMinimum Salt Rejection\u003c\/td\u003e\n\u003ctd\u003e99%\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eActive Membrane Area\u003c\/td\u003e\n\u003ctd\u003e3.6 m² (39 ft²)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFeed Spacer\u003c\/td\u003e\n\u003ctd\u003e28 mil\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTest Feed Water\u003c\/td\u003e\n\u003ctd\u003e1500 ppm NaCl\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTest Pressure\u003c\/td\u003e\n\u003ctd\u003e150 psi\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTest Temperature\u003c\/td\u003e\n\u003ctd\u003e25°C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTest pH\u003c\/td\u003e\n\u003ctd\u003e7–8\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaximum Operating Pressure\u003c\/td\u003e\n\u003ctd\u003e600 psi\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaximum Operating Temperature\u003c\/td\u003e\n\u003ctd\u003e45°C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFeed Water Flow\u003c\/td\u003e\n\u003ctd\u003e3.6 m³\/hour\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaximum Pressure Drop\u003c\/td\u003e\n\u003ctd\u003e15 psi\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFeed Water SDI\u003c\/td\u003e\n\u003ctd\u003eMaximum 5\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating pH Range\u003c\/td\u003e\n\u003ctd\u003e2–11\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCleaning pH Range\u003c\/td\u003e\n\u003ctd\u003e1–13\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eChlorine Tolerance\u003c\/td\u003e\n\u003ctd\u003eLess than 0.1 ppm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003chr\u003e\n\u003ch2\u003eOperating Notes\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003eSalt rejection should be measured after \u003cstrong\u003e24–48 hours\u003c\/strong\u003e of continuous operation.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eIndividual membrane elements may have a permeate flow variation of \u003cstrong\u003e±15%\u003c\/strong\u003e.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eFeed water should have an SDI of \u003cstrong\u003e5 or below\u003c\/strong\u003e for optimum membrane performance and lifespan.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eFree chlorine and other oxidising agents must be removed before the membrane, as oxidation damage is not covered by the manufacturer's warranty.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr\u003e\n\u003ch2\u003eWhy Choose the Pallas LP 4021?\u003c\/h2\u003e\n\u003cp\u003eThe \u003cstrong\u003ePallas LP 4021 4021 membrane\u003c\/strong\u003e is engineered to provide maximum performance with low operating costs. Its high permeate output, excellent salt rejection and compatibility with standard 4\" × 21\" reverse osmosis systems make it an ideal solution for commercial and industrial water treatment applications.\u003c\/p\u003e\n\u003cp\u003eWhether you are replacing an existing membrane or upgrading your reverse osmosis system, the \u003cstrong\u003ePallas LP 4021 membrane\u003c\/strong\u003e delivers dependable, high-quality water purification you can trust.\u003c\/p\u003e\n\u003cp\u003eOrder your \u003cstrong\u003ePallas LP 4021 4\" x 21\" reverse osmosis membrane\u003c\/strong\u003e today for reliable performance, outstanding water quality and long service life.\u003c\/p\u003e","brand":"GAPS Water Treatment","offers":[{"title":"Default Title","offer_id":57624152736126,"sku":"11066000014","price":73.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0648\/3227\/4627\/files\/lp4021-2.jpg?v=1782746417","url":"https:\/\/www.gapswater.co.uk\/products\/pallas-lp-4021-4-x-21-reverse-osmosis-membrane-element","provider":"GAPS Water Treatment","version":"1.0","type":"link"}