2.5"x21" | 365 GPD | Low Energy | Tape Wrap | FilmTec Membrane
SKU: 5168995954

2.5"x21" | 365 GPD | Low Energy | Tape Wrap | FilmTec Membrane

$109.64 $121.82
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Description

2.5"x21" | 365 GPD | Low Energy | Tape Wrap | FilmTec MembraneDOW FILMTEC XLE 2521 Low Energy Reverse Osmosis Membrane Element DOW FILMTEC TW30 2521 Elements produce high quality water for small commercial systems. DOW FILMTEC TW30 2521 elements are tape wrapped. In addition to high quality water and low energy costs, DOW FILMTEC membranes also deliver savings by providing long lasting and reliable performance. DOW FILMTEC Brackish Water Reverse Osmosis Elements can separate salts from water and are produced





DOW FILMTEC™ XLE-2521 Low Energy Reverse Osmosis Membrane Element



DOW FILMTEC TW30-2521 Elements produce high quality water for small commercial systems. DOW FILMTEC TW30-2521 elements are tape-wrapped. In addition to high quality water and low energy costs, DOW FILMTEC membranes also deliver savings by providing long lasting and reliable performance.



DOW FILMTEC Brackish Water Reverse Osmosis Elements can separate salts from water and are produced with an automated fabrication process for precision, consistency, and reliability. DOW FILMTEC RO membranes build on a tradition of leadership in the thin-film composite membrane industry and meet the challenges of higher rejection in lower-pressure operations.



DOW FILMTEC XLE-2521 is FDA – 21 CFR 177.2550; Food and Drug Administration Compliant.



Specifications for XLE-2521



FilmTec Product:

XLE-2521


FilmTec Part Number:

154530
Size (Approximate): 2.5" Dia. x 21"L


Flow Rate:

365 gpd (1.38 m³/d)


Applied Pressure:

100 psig (6.9 bar)


Stabilized Salt Rejection:

99.0%


Active Surface Area:

13 Sq. Ft.


Single Element Recovery:

10%
Exterior:

Tape-Wrapped


Membrane Type:

Polyamide Thin-Film


Composite

Permeate flow and salt rejection based: 500 ppm NaCl feed stream, 77°F, 8% recovery, 100 psig.



Operating Limits for XLE-2521



Maximum Operating Temperature:

113°F (45°C)


Maximum Operating Pressure:

600 psig (41 bar)


Maximum Pressure Drop:

13 psig (0.9 bar)


Maximum Feed Flow Rate:

6 gpm (1.4m³/h)


pH Range, Continuous Operation*:

2-11


pH Range, Short-Term Cleaning**:

1-13


Maximum Feed Silt Density Index:

SDI 5


Fere Clorine Tolerance***:		 <0.1ppm

*Maximum temperature for continuous operation above pH 10 is 95°F
**Refer to cleaning guidelines.


***Under certain conditions, the presence of free chlorine and other oxidizing agents will cause premature membrane failure. Since oxidation damage is not covered under warranty, Dow recommends removing residual free chlorine by pretreatment prior to membrane exposure.



Related Products for use with XLE-2521

PV2521PVCAU

PVC Membrane Housing Pressure Vessel for 2.5" x 21" Membrane Element
PV2521SSAU-316

Stainless Steel Membrane Housing Pressure Vessel for 2.5" x 21" Membrane Element



Benefits of DOW FilmTec Commercial RO Membranes



  • Lower Operating Pressure reduces power consumption, lowering the cost of equipment and operation.


  • Reverse Osmosis water treatment removes up to 99% of total dissolved solids from water.


  • High flux results in high yields


  • High rejection provides good water quality


  • FilmTec performance and quality



Common Applications for FilmTec XLE-2521 Commercial RO Membranes:



  • Commercial Water Treatment Systems


  • Food Service


  • Medical and Research Institutions


  • Hospitality Industry



Physical Dimensions of DOW FilmTec XLE-2521

INCHES (MM)
A

21.0 (533)
B

1.19 (30)
C

0.75 (19)
D

2.4 (61)

XLE-2521 Fits nominal 25x21 size pressure vessels.

For more information, please visit this products webpage.
Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
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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]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 5168995954

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Melly
Waukegan, US
★★★★★ 1
Indestructible my shiny hiney!! Dog had it destroyed in 6 hours. Waste of $$$
Color: Blue Cow
I bought this blue buffalo dog stuffy toy for my medium sized dog. It says it is for "heavy chewers" and she really isn't a heavy chewer. My German shepherd was a heavy chewer. This little dog isn't. So this toy should have lasted her a couple of weeks at best. NOPE! NOT EVEN CLOSE!! She had it for about 6 hours before the seams were busting open and stuffing scattered all over my house. 6 FREAKING HOURS!!! I'm very upset over this and my son threw it away before I could tell him to let me return it. So that's $6.99 down the drain. Indestructible my ass. Waste of money and lots of lies on the page. Phooey!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on September 8, 2025
E
Verified Purchase
El nené
Omaha, US
★★★★★ 5
Dureza
Color: Blue Cow
Excelente producto y realmente duradero y resistente para perros
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 3, 2026
S
Verified Purchase
SparkPlug
Alexandria, US
★★★★★ 3
Not so big bull. Tiny in size. Not
Color: Blue Cow
Cute but underwhelmed by the size. Barely 7”x4”. Missing over 3 inches from description. Disappointment indeed.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 5, 2026
E
Verified Purchase
E. Win
Birmingham, US
★★★★★ 5
Grump lobster toy
Color: Red Lobster
My girl blood-eagled this poor thing within minutes but she had one heck of a time doing it! If you're looking for durable, this probably isn't for you. If, however, you're looking for some quality entertainment for you and your dog, look no further. A little reconstruction and ol' Larry was ready for round two of being eviscerated. Solid toy, real cute.
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Reviewed in the United States on September 21, 2025
D
Verified Purchase
Doc Vincent
Port Orchard, US
★★★★★ 4
Not a terrible toy
Color: Blue Cow
Not a terrible product, but for a super sure it doesn’t last very long. It’s cute, but this is meant for definitely a small two small medium dog.
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Reviewed in the United States on April 13, 2026

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