Toray TMG10D RO Membrane NSF-Certified Ultra Low Pressure Compatible Element by SpiroPure

SP-UL4040

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Product Overview

The SpiroPure SP-UL4040 Ultra Low-Pressure Industrial Reverse Osmosis Membrane Element 4 x 40 is a high quality low energy replacement membrane filter cartridge. The SP-UL4040 ultra low pressure ro membrane performs RO filtration at 2/3 the operating pressure of a traditional industrial RO membrane, allowing for lower energy consumption and operating costs. Choose SpiroPure’s low pressure ULP 4040 Membrane as a compatible replacement for the models listed below.

Ultra Low-Pressure RO Membrane 4040 Specifications:

Nominal Size: 4" x 40"
Certification: NSF 61 certified
Salt Rejection Rate: 99.4%
Average Permeate ±15%: 2,400 GPD @ 150 PSI
Feedwater NaCl: 1,500 ppm
Fresh Water Recovery Rate: 15%
Feed Spacer: 28 mil
Maximum Recommended NaCl: <5,000 ppm
Maximum Operating Pressure 600 PSI

SP-UL4040 Ultra Low Pressure RO Membrane element common applications:

Low salt-content surface water (brackish water)
Groundwater
Tap water
Municipal water sources
Surface water
Small and medium commercial pure water systems
Drinking water

ULP 4040 Ultra Low Pressure Low Energy Membrane compatible model numbers:

LE1-4040
Dupont Filmtec LE-4040
Hydranautics Nitto ESPA2-4040
LG Chem LG BW 4040 ES
Toray TMG10D
ULP 4040

FAQs on 4040 Industrial RO Membrane

What is the benefit of an ultra low pressure RO membrane?

An ultra low pressure RO membrane delivers strong permeate output while requiring less operating pressure than a standard membrane, reducing energy consumption and operating costs. The SpiroPure SP-UL4040 performs RO filtration at roughly two-thirds the pressure of other standard RO membrane elements.

How much water does a 4040 ultra low pressure RO membrane produce per day?

The SpiroPure SP-UL4040 produces an average permeate output of 2,400 GPD (±15%) at 150 psi, with a 15% fresh water recovery rate, tested against 1,500 ppm feedwater NaCl. The SP-XL4040 is also rated at 2,400 GPD, but at 100 psi with 500 ppm NaCl test feedwater. Because the test conditions differ, compare each model’s specifications with your feedwater and system requirements before choosing a replacement.

What pressure does the SP-UL4040 RO membrane need?

The SpiroPure SP-UL4040 operates at 150 PSI under standard test conditions, with a maximum operating pressure of 600 PSI. This lower pressure requirement compared to standard brackish membranes helps reduce energy consumption and operating costs.

How long does a 4040 RO membrane last?

Most 4040 RO membranes, including the SP-UL4040, last 2 to 4 years depending on feed water quality, usage volume, and pre-filtration. Poor pre-filtration or high sediment and chlorine loads can shorten that considerably, while proper maintenance even with continuous use can extend it toward the higher end.

What water sources is the SP-UL4040 membrane suitable for?

The SP-UL4040 is suitable for low salt-content surface water, groundwater, tap water, and municipal water sources, with a maximum recommended NaCl of 5,000 ppm. It's a good fit for small and medium commercial pure water systems prioritizing energy efficiency.

How much does the SpiroPure SP-UL4040 cost?

The SpiroPure SP-UL4040 is priced to offer compatible ultra low-pressure performance at a lower cost than comparable brand-name elements like the Dupont Filmtec LE-4040. See this page for current RO membrane prices.