Welcome to GAPS Water Treatment learn more

Fast delivery starting from £9.00 Learn more

Order online, email or call with you order!

Hydranautics ESPA4 MAX Reverse Osmosis Membrane 8" x 40"

SKU: 11060000004 | 1103070007
£812.80
Shipping calculated at checkout.
Hydranautics Bulk Discounts – Save up to 35%

Quantity discounts automatically applied at checkout. The more you order of the same membrane, the more you save.

See quantity discount breakdown below.

Quantity Discounts

Save up to 35% with our automatic bulk discounts.

Quantity Discounts

2–5 membranes: 7.14% off

6–10 membranes: 20.08% off

11–15 membranes: 25.08% off

16–50 membranes: 26.87% off

51–100 membranes: 30.50% off

101+ membranes: 35.17% off

No discount code required – discounts are applied automatically at checkout.

Discounts apply to quantities of the same membrane model only. Different models cannot be combined.

Technical Resources
Questions & Answers loading...

Product Description

Combining energy efficiency with high rejection

The energy required to pressurize RO feed water is the largest contributor to the total energy consumption of the RO plant. ESPA membranes are the choice for applications demanding high-energy efficiency, with uncompromised productivity and salt rejection. Operating at significantly lower pressures, ESPA elements produce high quality water in a range of water treatment applications, ensuring energy cost savings.

ESPA membranes are used in the treatment of drinking water, industrial process waters, municipal and industrial waste water recovery and reuse because of this exception performance capability. These membranes also serve as part of polishing units in seawater desalination plants when boron rejection is critical.

ESPA4 are the lowest feed pressure membranes offering low energy consumption. ESPA4 membranes require ultra-low pressures without compromising high salt rejection and are commonly used in the second pass of a reverse osmosis system.

The ESPA4 membranes are available in the LD variant. Low differential LD Technology® models are offered to minimize colloidal fouling when used with conventional pre-treatment equipment. These membranes offer consistently low feed pressures and longer intervals between cleanings.

Payment & Security

Payment methods

  • American Express
  • Apple Pay
  • Diners Club
  • Discover
  • Google Pay
  • Maestro
  • Mastercard
  • PayPal
  • Shop Pay
  • Union Pay
  • Visa

Your payment information is processed securely. We do not store credit card details nor have access to your credit card information.

Frequently Asked Questions

What makes the Hydranautics ESPA4 MAX Reverse Osmosis Membrane 8" ideal for energy-efficient water treatment?
The Hydranautics ESPA4 MAX Reverse Osmosis Membrane 8" is designed for high-energy efficiency by operating at significantly lower pressures, reducing energy costs while maintaining high salt rejection and productivity. Its advanced technology ensures high-quality water in various applications without compromising performance.
How does the Hydranautics ESPA4 MAX Reverse Osmosis Membrane 8" perform in treating seawater or brackish water?
The Hydranautics ESPA4 MAX Reverse Osmosis Membrane 8" effectively serves as a polishing unit in seawater desalination and boron rejection applications, providing high salt rejection and low feed pressure operation, which ensures reliable performance in demanding water treatment scenarios.
What are the benefits of choosing the LD variant of the Hydranautics ESPA4 MAX Reverse Osmosis Membrane 8"?
The LD variant of the Hydranautics ESPA4 MAX Reverse Osmosis Membrane 8" features Low differential LD Technology®, which minimizes colloidal fouling, extends cleaning intervals, and maintains consistently low feed pressures for enhanced system longevity and reduced maintenance costs.
What are the main benefits of using the Hydranautics ESPA4 MAX Reverse Osmosis Membrane 8" x 40"?
The Hydranautics ESPA4 MAX Reverse Osmosis Membrane 8" x 40" offers high salt rejection combined with energy efficiency, operating at lower pressures to save on energy costs while maintaining high water quality and productivity in various water treatment applications.
How does the ESPA4 MAX membrane improve energy savings in my water treatment system?
This membrane is designed to operate at significantly lower pressures, which reduces the energy required for pressurizing feed water, resulting in lower overall energy consumption and cost savings without sacrificing water quality.
In which water treatment applications can I use the Hydranautics ESPA4 MAX membrane?
The ESPA4 MAX membrane is suitable for a range of applications including drinking water treatment, industrial process waters, municipal and industrial wastewater recovery and reuse, as well as in seawater desalination plant polishing units when boron rejection is essential.
What is the advantage of the LD variant of the ESPA4 MAX membrane?
The LD variant features Low differential LD Technology® which helps minimize colloidal fouling when used with conventional pre-treatment equipment, resulting in consistently low feed pressures and longer intervals between cleanings.
Is the Hydranautics ESPA4 MAX membrane suitable for second pass reverse osmosis systems?
Yes, the ESPA4 MAX membrane is commonly used in the second pass of reverse osmosis systems because of its ability to provide high salt rejection at ultra-low pressures, enhancing overall system performance.
Back to top