ULP1812-75 Ultra-Low-Pressure RO Membrane – 75 GPD

The ULP1812-75 Reverse Osmosis Membrane is an ultra-low-pressure membrane element designed for treating properly pretreated, low-salinity water sources. Its compact residential configuration supports installation in compatible membrane housings used in under-sink, point-of-use and light-commercial reverse osmosis systems.

Under specified test conditions, the ULP1812-75 provides a nominal permeate-flow rating of 75 gallons per day, or approximately 280 liters per day. Current manufacturer information reports a stable salt-rejection rate of 98%, helping reduce dissolved salts and other membrane-rejectable substances from compatible feedwater.

The membrane is tested at 60 PSI, providing greater nominal water production than a 50 GPD element while retaining a compact residential format. Actual permeate flow depends on incoming water pressure, temperature, dissolved-solids concentration, recovery rate and membrane condition.

The ULP1812-75 is suitable for qualifying tap water, municipal water, well water and other low-salinity sources when appropriate pretreatment is provided. Sediment, hardness, iron, organic matter and oxidizing chemicals should be controlled to protect the membrane and maintain system performance.

Technical Specification

Testing Conditions

Testing Pressure: 60 psi (0.41MPa)

Testing Solution Temperature: 25 ℃

Concentration of Testing Solution (NaCl): 250ppm

pH value of Testing Solution: 6.5~8.5

Recovery Rate of Single Element: 15%

Key Features

• Ultra-low-pressure operation for energy efficiency
• High salt and TDS rejection
• Thin Film Composite (TFC) membrane technology
• Standard 1812 membrane format
• 50 GPD nominal permeate flow
• Improves taste, odor, and clarity of drinking water
• Compatible with most residential RO systems

Applications

◎ Drinking water production, such as: packaged water, direct drinking water, food processing water, etc.

◎ Purified water production, such as: pharmaceutical water, medical water, electronics water, etc.

Shipping Information

Optimal Purity Solutions is committed to fast, reliable, and professional fulfillment for our authorized dealer network.

Fulfillment & Processing

• Order Processing: Most in-stock orders ship within 1–2 business days

• Custom/OEM Builds: Lead times vary by configuration; your sales representative will confirm timelines

Shipping Coverage

• Domestic: Nationwide shipping throughout the United States

• International: Available for qualified distributors (terms and transit times vary)

Carriers & Methods

• Shipments are sent via trusted national freight and parcel carriers

• LTL/FTL freight available for pallets and bulk orders

• Expedited shipping options available upon request

Packaging & Handling

• Products are professionally packaged to protect against damage in transit

• Palletized and freight shipments are secured and labeled to industry standards

Tracking & Support

• Tracking information is provided once your order ships

• Our logistics team is available to assist with routing, delivery coordination, and special requirements

Important Notes

• Shipping costs are calculated based on weight, dimensions, destination, and service level

• Damages or discrepancies must be reported within 48 hours of delivery

• Products are sold exclusively through authorized water treatment dealers and partners