US Water Energy Mizer 4.0" X 21" 1000 GPD Membrane

Sku: 255-USWEM-4021

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Regular Price: $387.00
Sale Price: $231.95
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  • Buy 4 for $220.35 each and save 6%
  • Buy 12 for $208.75 each and save 11%

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The Highest Quality Membranes in the Industry for both Residential and Commercial.
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Product Description

US Water Systems Energy Mizer 4" x 21" 1,000 GPD Ultra Low Energy Membrane Element

energy mizerHere's the best opportunity to cut costs and improve efficiency with US Water's Energy Mizer Technology. Ultra Low Energy - 80 PSI Reverse Osmosis Membranes - The BEST Ultra Low Energy Membrane on the Market! With an EnergyMizer membrane, your system operates at 80 psi, saving up to 40% on energy costs over systems that operate at 200-250 psi. Plus, low pressure membranes dramatically extend the life of your system because they operates at much lower pressures, putting less stress on pumps, motors, fittings, tubing and controls. It’s just like high blood pressure when you operate your system at 80 psi!

Manufactured using the industry’s leading patented membrane film technology. Energy Mizer Membrane Elements offer reliability and high performance, while delivering consistent results with high rejection rates, which equipment suppliers, distributors, and dealers worldwide have come to rely on. This is one of one of the industry’s highest flowing membranes. They are the only element on the market that operates at a pressure of 80 psi - meaning more energy savings. Energy Mizer Membrane Elements are also the best choice to counter the negative effects of cold water temperatures on reverse osmosis production.


  • Ultra Low Energy Consumption
  • High Rejection Rates 
  • Improved System Performance
  • Superior Quality and Cost Savings
  • Protective ABS Hard Shell
  • Individually Tested
  • Made in the U.S.A


  • Membrane Type: Thin Film Composite
  • Maximum Operating Temperature: 110°F (43°C)
  • Minimum Concentrate Flow Rate: 5:1
  • pH Range, Continuous Operation: 3 - 11
  • pH Range, Short Term Cleaning (30 Min.): 1 - 12
  • Maximum Feed Water Turbidity: 1 NTU
  • Maximum Feed Silt Density Index (SDI): 5 SDI
  • Chlorine Tolerance: 0 PPM

Permeate flow and salt rejection based on the following test conditions: 550 ppm Softened Tap Water, 77°F (25°C), 15% Permeate Recovery, 6.5 – 7.0 pH Range, and the specified applied pressure. Data taken after 30 minutes of operation. Maximum pressure drop for each element is 10 psi. Minimum salt rejection is 96%. Permeate flow for individual elements may vary +/- 20%.

Direct Replacement for the Following Membranes

  • RoUltraTec 200393/HF5-4021
  • Axeon HF5-4021
  • Axeon HF4-4021
  • Axeon HF1-4021
  • Axeon HR3-4021
  • Filmtec TW30-4021
  • Filmtec XLE-4021

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Additional Information

Availability In Stock
Membrane Size 4" Commercial
Manufacturer US Water Systems

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