{"product_id":"ulp21-2540-ultra-low-pressure-ro-membrane-2-5-40-750-gpd","title":"ULP21-2540 Ultra-Low-Pressure RO Membrane – 2.5″ × 40″, 750 GPD","description":"\u003cp\u003eThe ULP21-2540 Reverse Osmosis Membrane is an ultra-low-pressure membrane element designed for efficient dissolved-solids reduction in commercial and light-industrial water-treatment systems. Its nominal 2.5-inch × 40-inch configuration supports installation in compatible 2540 membrane housings and commercial RO equipment.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003eUnder specified test conditions, the ULP21-2540 delivers a nominal permeate flow of 750 gallons per day, or approximately 2.84 cubic meters per day, with a stable salt-rejection rate of 99%. Its ultra-low-pressure design helps produce treated water at lower feed pressure than many conventional low-pressure membrane elements.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003eThe spiral-wound element provides approximately 30 square feet of active membrane area within a compact commercial format. This combination of membrane area, permeate production, and rejection performance makes it suitable for systems requiring efficient water purification without the footprint of a larger 4040 membrane.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003eThe ULP21-2540 is intended for appropriately pretreated, low-salinity feedwater, including qualifying municipal water, groundwater, and surface water. Proper pretreatment is essential for controlling sediment, hardness, scale, iron, organic fouling, and oxidizing chemicals that could reduce membrane performance and service life.\u003c\/p\u003e\n\u003ch3\u003eTechnical Specification\u003c\/h3\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cp\u003e\u003cspan\u003eModel\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd\u003e\n\u003cp\u003e\u003cspan\u003eULP21-2521\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cp\u003e\u003cspan\u003eMembrane Type\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd\u003e\n\u003cp\u003e\u003cspan\u003eReverse Osmosis (RO)\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cp\u003e\u003cspan\u003eTechnology\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd\u003e\n\u003cp\u003e\u003cspan\u003eThin Film Composite (TFC)\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cp\u003e\u003cspan\u003eElement Size\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd\u003e\n\u003cp\u003e\u003cspan\u003e2.5″ x 40″ (2521)\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cp\u003e\u003cspan\u003eNominal Flow Rate\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd\u003e\n\u003cp\u003e\u003cspan\u003e~1,000 GPD (typical)\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cp\u003e\u003cspan\u003eSalt Rejection\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd\u003e\n\u003cp\u003e\u003cspan\u003e≥\u003c\/span\u003e\u003cspan\u003e 99% (typical)\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cp\u003e\u003cspan\u003eOperating Pressure\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd\u003e\n\u003cp\u003e\u003cspan\u003eUltra-Low Pressure\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cp\u003e\u003cspan\u003eMax Operating Temperature\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd\u003e\n\u003cp\u003e\u003cspan\u003e113°F (45°C)\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cp\u003e\u003cspan\u003eMax Feed TDS\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd\u003e\n\u003cp\u003e\u003cspan\u003e2,000 ppm\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cp\u003e\u003cspan\u003eOperating pH Range\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd\u003e\n\u003cp\u003e\u003cspan\u003e2 – 11\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cp\u003e\u003cspan\u003eCleaning pH Range\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd\u003e\n\u003cp\u003e\u003cspan\u003e1 – 12\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cp\u003e\u003cspan\u003eChlorine Tolerance\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd\u003e\n\u003cp\u003e\u003cspan\u003e\u0026lt; 0.1 ppm\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cp\u003e\u003cspan\u003eApplications\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd\u003e\n\u003cp\u003e\u003cspan\u003eCommercial RO, Compact RO Systems\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003eTesting Conditions\u003c\/h3\u003e\n\u003cp\u003eTesting Pressure: 150 psi (1.03MPa)\u003c\/p\u003e\n\u003cp\u003eTesting Solution Temperature: 25 ℃\u003c\/p\u003e\n\u003cp\u003eConcentration of Testing Solution (NaCl): 1500ppm\u003c\/p\u003e\n\u003cp\u003epH value of Testing Solution: 7.5\u003c\/p\u003e\n\u003cp\u003eRecovery Rate of Single Element: 15%\u003c\/p\u003e\n\u003ch3\u003eOperation Limits \u0026amp; Conditions\u003c\/h3\u003e\n\u003cp\u003eMax. Working Pressure: 600psi\u003cspan\u003e（\u003c\/span\u003e4.14MPa\u003cspan\u003e)\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eMax. Volume of Feed Water: 16gpm\u003cspan\u003e（\u003c\/span\u003e3.6 m3\/h\u003cspan\u003e）\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eMax. Temperature of Feed Water: 45\u003cspan\u003e℃\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e Max. Feed water SDI15: 5\u003c\/p\u003e\n\u003cp\u003epH Range of Feed Water during Continuous Operation: 3\u003cspan\u003e～\u003c\/span\u003e10\u003c\/p\u003e\n\u003cp\u003epH Range of Feed Water during Chemical Cleaning: 2\u003cspan\u003e～\u003c\/span\u003e12\u003c\/p\u003e\n\u003cp\u003eResidual Chlorine Concentration of Feed Water : \u003cspan\u003e＜\u003c\/span\u003e0.1ppm\u003c\/p\u003e\n\u003cp\u003eMax. Pressure Drop of Single Membrane Element: 15psi\u003cspan\u003e（\u003c\/span\u003e0.1MPa\u003cspan\u003e）\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eMax. Pressure Drop of Single Pressure Vessel with Six RO Membranes: 50psi\u003cspan\u003e（\u003c\/span\u003e0.34MPa\u003cspan\u003e）\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003eApplications\u003c\/h3\u003e\n\u003cp\u003e◎ Drinking water production, such as: packaged water, direct drinking water, food processing water, etc.\u003c\/p\u003e\n\u003cp\u003e◎ Purified water production, such as: pharmaceutical water, medical water, electronics water, etc.\u003c\/p\u003e\n\u003ch3\u003eShipping Information\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eOptimal Purity Solutions\u003c\/strong\u003e is committed to fast, reliable, and professional fulfillment for our authorized dealer network.\u003c\/p\u003e\n\u003cp\u003eFulfillment \u0026amp; Processing\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eOrder Processing:\u003c\/strong\u003e Most in-stock orders ship within \u003cstrong\u003e1–2 business days\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eCustom\/OEM Builds:\u003c\/strong\u003e Lead times vary by configuration; your sales representative will confirm timelines\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eShipping Coverage\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eDomestic:\u003c\/strong\u003e Nationwide shipping throughout the United States\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eInternational:\u003c\/strong\u003e Available for qualified distributors (terms and transit times vary)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eCarriers \u0026amp; Methods\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003eShipments are sent via \u003cstrong\u003etrusted national freight and parcel carriers\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eLTL\/FTL freight\u003c\/strong\u003e available for pallets and bulk orders\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eExpedited shipping options available upon request\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003ePackaging \u0026amp; Handling\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003eProducts are \u003cstrong\u003eprofessionally packaged\u003c\/strong\u003e to protect against damage in transit\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003ePalletized and freight shipments are \u003cstrong\u003esecured and labeled\u003c\/strong\u003e to industry standards\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eTracking \u0026amp; Support\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003eTracking information is provided once your order ships\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eOur logistics team is available to assist with \u003cstrong\u003erouting, delivery coordination, and special requirements\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eImportant Notes\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003eShipping costs are calculated based on \u003cstrong\u003eweight, dimensions, destination, and service level\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eDamages or discrepancies\u003c\/strong\u003e must be reported within \u003cstrong\u003e48 hours of delivery\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eProducts are sold \u003cstrong\u003eexclusively through authorized water treatment dealers and partners\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Optimal Purity Solutions","offers":[{"title":"Default Title","offer_id":67819418615851,"sku":"ULP21-2540","price":109.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0803\/9497\/7323\/files\/886b7f_06219d05df8c4407a6a902e0d4f78103mv2.png?v=1791813280","url":"https:\/\/shop.optimalpuritysolutions.com\/products\/ulp21-2540-ultra-low-pressure-ro-membrane-2-5-40-750-gpd","provider":"Optimal Purity Solutions","version":"1.0","type":"link"}