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CSM RE2521-BLN - 2.5" x 21"; 300 GPD TW-LE Replacement Reverse Osmosis Membrane

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CSM RE2521-BLN - 2.5" x 21"; 300 GPD TW-LE Replacement Reverse Osmosis Membrane

The CSM RE2521-BLN is a 300 GPD commercial reverse osmosis membrane engineered for brackish and tap water applications under low-pressure conditions, delivering reliable filtration while reducing energy costs. This 2.5" x 21" Toray-manufactured TW-LE membrane maintains high rejection rates even at operating pressures lower than standard RO membranes.
SPECIFICATIONS

CSM RE2521-BLN Membrane Performance Data

Daily Production
300 GPD
Gallons per day
Dimensions
2.5" x 21"
Standard commercial size
Membrane Type
TW-LE
Low energy thin-film composite
Replacement Cycle
24 Months
Or when flow declines
Operating Pressure
Low PSI
Reduced energy consumption
Application Class
Commercial
Brackish and tap water
TECHNICAL DETAILS

CSM RE2521-BLN Technical Specifications

Model Number CSM RE2521-BLN
Manufacturer Toray / CSM
Membrane Chemistry Thin-film composite (TFC)
Rated Flow 300 gallons per day
Membrane Dimensions 2.5" diameter x 21" length
Optimal Feed Water Brackish water, municipal tap water
Service Life 24 months (replace sooner if pressure drop or flow decline observed)
COMPATIBILITY & APPLICATIONS

Ideal Uses for the CSM RE2521-BLN Membrane

The CSM RE2521-BLN is designed for commercial reverse osmosis systems treating brackish or municipal tap water where energy efficiency is a priority. Its low-energy TW-LE design allows operation at reduced feed pressures compared to standard commercial membranes, making it well-suited for facilities looking to lower operational costs without sacrificing filtration performance. Compatible with standard 2.5" x 21" commercial membrane housings. Best performance is achieved with proper pretreatment including sediment and carbon filtration to protect membrane surface and extend service life.

💧 Pro tip: Monitor system pressure and permeate flow monthly. A 10-15% decline in flow or a noticeable increase in feed pressure typically indicates membrane fouling or scaling, signaling it's time for replacement even if the 24-month mark hasn't been reached.
The CSM RE2521-BLN is a 300 GPD commercial reverse osmosis membrane engineered for brackish and tap water applications under low-pressure conditions, delivering reliable filtration while reducing energy costs. This 2.5" x 21" Toray-manufactured TW-LE membrane maintains high rejection rates even at operating pressures lower than standard RO membranes.
SPECIFICATIONS

CSM RE2521-BLN Membrane Performance Data

Daily Production
300 GPD
Gallons per day
Dimensions
2.5" x 21"
Standard commercial size
Membrane Type
TW-LE
Low energy thin-film composite
Replacement Cycle
24 Months
Or when flow declines
Operating Pressure
Low PSI
Reduced energy consumption
Application Class
Commercial
Brackish and tap water
TECHNICAL DETAILS

CSM RE2521-BLN Technical Specifications

Model Number CSM RE2521-BLN
Manufacturer Toray / CSM
Membrane Chemistry Thin-film composite (TFC)
Rated Flow 300 gallons per day
Membrane Dimensions 2.5" diameter x 21" length
Optimal Feed Water Brackish water, municipal tap water
Service Life 24 months (replace sooner if pressure drop or flow decline observed)
COMPATIBILITY & APPLICATIONS

Ideal Uses for the CSM RE2521-BLN Membrane

The CSM RE2521-BLN is designed for commercial reverse osmosis systems treating brackish or municipal tap water where energy efficiency is a priority. Its low-energy TW-LE design allows operation at reduced feed pressures compared to standard commercial membranes, making it well-suited for facilities looking to lower operational costs without sacrificing filtration performance. Compatible with standard 2.5" x 21" commercial membrane housings. Best performance is achieved with proper pretreatment including sediment and carbon filtration to protect membrane surface and extend service life.

💧 Pro tip: Monitor system pressure and permeate flow monthly. A 10-15% decline in flow or a noticeable increase in feed pressure typically indicates membrane fouling or scaling, signaling it's time for replacement even if the 24-month mark hasn't been reached.
$70.64

Original: $201.84

-65%
CSM RE2521-BLN - 2.5" x 21"; 300 GPD TW-LE Replacement Reverse Osmosis Membrane—

$201.84

$70.64

Description

The CSM RE2521-BLN is a 300 GPD commercial reverse osmosis membrane engineered for brackish and tap water applications under low-pressure conditions, delivering reliable filtration while reducing energy costs. This 2.5" x 21" Toray-manufactured TW-LE membrane maintains high rejection rates even at operating pressures lower than standard RO membranes.
SPECIFICATIONS

CSM RE2521-BLN Membrane Performance Data

Daily Production
300 GPD
Gallons per day
Dimensions
2.5" x 21"
Standard commercial size
Membrane Type
TW-LE
Low energy thin-film composite
Replacement Cycle
24 Months
Or when flow declines
Operating Pressure
Low PSI
Reduced energy consumption
Application Class
Commercial
Brackish and tap water
TECHNICAL DETAILS

CSM RE2521-BLN Technical Specifications

Model Number CSM RE2521-BLN
Manufacturer Toray / CSM
Membrane Chemistry Thin-film composite (TFC)
Rated Flow 300 gallons per day
Membrane Dimensions 2.5" diameter x 21" length
Optimal Feed Water Brackish water, municipal tap water
Service Life 24 months (replace sooner if pressure drop or flow decline observed)
COMPATIBILITY & APPLICATIONS

Ideal Uses for the CSM RE2521-BLN Membrane

The CSM RE2521-BLN is designed for commercial reverse osmosis systems treating brackish or municipal tap water where energy efficiency is a priority. Its low-energy TW-LE design allows operation at reduced feed pressures compared to standard commercial membranes, making it well-suited for facilities looking to lower operational costs without sacrificing filtration performance. Compatible with standard 2.5" x 21" commercial membrane housings. Best performance is achieved with proper pretreatment including sediment and carbon filtration to protect membrane surface and extend service life.

💧 Pro tip: Monitor system pressure and permeate flow monthly. A 10-15% decline in flow or a noticeable increase in feed pressure typically indicates membrane fouling or scaling, signaling it's time for replacement even if the 24-month mark hasn't been reached.
CSM RE2521-BLN - 2.5" x 21"; 300 GPD TW-LE Replacement Reverse Osmosis Membrane | Isopure Water