SKU: 4955465555

8"x40" Seawater | 13,700 GPD | 800 psi | 99.8% Rej | 400 ft2 | LG Chem RO Membrane

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Description

8"x40" Seawater | 13,700 GPD | 800 psi | 99.8% Rej | 400 ft2 | LG Chem RO MembraneLG Chem Nano H2O LG SW 400 ES Seawater (SWRO) Reverse Osmosis Membrane LG SW 400 R High Rejection membranes offer a combination of high rejection and low energy requirements to reduce the total cost of desalination; suitable for medium to high salinity seawater applications. LG Chems NanoH2O seawater RO membranes, incorporated with innovative Thin Film Nanocomposite (TFN) technology, reduce the cost of desalination while delivering superior water


LG Chem Nano H2O LG SW 400 ES Seawater (SWRO) Reverse Osmosis Membrane


LG SW 400 R High Rejection membranes offer a combination of high rejection and low energy requirements to reduce the total cost of desalination; suitable for medium to high salinity seawater applications.

LG Chem’s NanoH2O™ seawater RO membranes, incorporated with innovative Thin Film Nanocomposite (TFN) technology, reduce the cost of desalination while delivering superior water quality. LG seawater RO membranes provide the highest salt rejection with high freshwater productivity.

Each LG SW 400 R membrane element is supplied with one membrane interconnector.


LG SW 400 ES Compatibility Information

LG SW 400 ES Membrane Element can be used as a replacement for the below membrane elements in your existing water treatment equipment. Please note that additional hardware or adapters may be required - refer to the pressure vessel and element drawings, or contact us to verify.

  • FilmTec SW30oULE-400i
  • Hydranautics SWC6-LD

Specifications for LG SW 400 ES

LG Chem Product: LG SW 400 ES
Size (Approximate): 8" Dia. x 40"L
Flow Rate: 13,700 gpd (51.9 lpd)
Applied Pressure: 800 psig (55 bar)
Stabilized Salt Rejection: 99.8%
Minimum Salt Rejection: 99.6%
Boron Rejection: 89%
Active Surface Area: 400 ft2 (37 m2)
Single Element Recovery: 8%
End Style: Standard Flush Cut
Exterior: Hard Shell Fiberglass
Feed Spacer: 34 mil
Membrane Type: Thin Film Nanocomposite
Can Replace Elements:

FilmTec SW30oULE-400i
Hydranautics SWC6-LD

Test Conditions : 32,000 ppm NaCl at 25°C (77°F), 800 psi (55 bar), pH 8, Recovery 8%. Permeate flows for individual elements may vary +/-15%


Benefits & Features of LG Seawater Reverse Osmosis Membranes

  • Create Drinking Water from Seawater
  • Stabilized salt rejection of 99.8%
  • Boron Rejection up to 89%
  • Improved permeate quality without increasing operating pressure
  • Reduced energy cost without sacrificing the permeate quality
  • Reduced capital and operation costs for multi-pass SWRO systems
  • LG Chem NanoH2O™ RO membranes are Standard 61 certified by NSF international for the production of drinking water.

Markets & Applications for LG Chem Reverse Osmosis Membranes

Power Generation
  • Boiler feed for steam generation
  • Cooling tower makeup water
  • FGD process makeup water
  • Treatment of cooling tower blowdown
  • Condensate polishing
  • NOx cooling water
Petrochemical
  • Desalting water Cooling tower makeup
  • Treatment of cooling tower blowdown
  • Boiler feed for steam generation
  • Condensate polishing
Automotive
  • Paint booths
  • Electrocoat and phosphatizing lines
  • Machining coolant makeup
  • Parts rinsing
Semiconductor
  • Cleaning and etching agents
  • Chip fabrication
  • Rinsing
  • Silicon wafer dicing
  • Cooling
  • Clean room humidification
Desalination
Municipal
Food & Beverage
  • Bottled water
  • Syrup blending
  • Flavor production
  • Boiler feed for steam production
  • Dairy and cheese making
  • Coffee and tea production

Physical Dimensions of LG Chem LG SW 400 ES

INCHES (MM)
A 40 (1016)
B 7.9 (200)
C 1.125 (28.6)

LG SW 400 ES fits nominal 8" ID pressure vessels.

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
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SKU: 4955465555

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Mary Freeman
Lake Worth, US
★★★★★ 5
amazing
Color: Large Set of 4
good buy worked well
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 13, 2026
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Steve
Fort Morgan, US
★★★★★ 4
3.5, Not 3.0
Color: Medium Set of 6
These balls were almost exactly what I needed. I was replacing my boy’s favorite ball, which is the 3” squeaky, spikey ball that fits in the chuck it launcher. Unfortunately I saw the shiny object next to it and because there were SIX balls and a dollar less, I failed to see that these are 3.5” balls instead of 3”…. Great balls but no fitty in the slingy. Buyer beware. No chuck it no problem. Save a buck.
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Reviewed in the United States on March 9, 2026
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Verified Purchase
HollisHoHo
Cuba, US
★★★★★ 5
MY CHIHUAHUA LOVES THESE BALLS!!
Color: Samll Set of 8
My little chihuahua, BamBam, is addicted to balls, especially little balls that squeak! However, any balls that have material on them, BamBam will tear them apart, swallow the material and then get an upset tummy! These balls saved the day! BamBam LOVES them & she cannot tear them apart! They hold up so well! No matter how much BamBam plays with them, they keep squeaking away!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on July 15, 2025
L
Verified Purchase
Laurens springerslng
Dallas, US
★★★★★ 5
Great thick squeaky ball
Color: Large Set of 2
These are good thick rubbery squeaky balls. My boy loves them! He's 75lbs. Strong chewer. I hav hard time squeezing to squeak, but he doesn't... He loves it!!!
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Reviewed in the United States on March 24, 2026
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g a ross
Boise, US
★★★★★ 5
Squeaky ball
Color: Large Set of 4
Perfect squeaky ball. Dogs love them. I love that they're durable and their thickness aids their durability. My Great Dane will play alone for hours with a ball.
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Reviewed in the United States on June 20, 2025

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