LG Chen LG-BW-2521-R RO Membrane NSF-Certified Brackish Water Compatible Element by SpiroPure

SP-BW2521

List Price $138.20

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Product Overview

The SpiroPure SP-BW2521 Brackish Water Commercial Reverse Osmosis Membrane Replacement is a high quality low pressure 2.5 x 21 replacement membrane filter cartridge. The SP-BW2521 brackish RO membrane is best suited for small commercial applications requiring reliable performance and high quality water production. Choose SpiroPure’s 2521 Brackish Water Filter as a compatible replacement for the models listed below.

Brackish Water 2521 RO Membrane Specifications:

Nominal Size: 2.5" x 21"
Certification: NSF 61 certified
Salt Rejection Rate: 99.5%
Average Permeate ±15%: 300 GPD @ 225 PSI
Feedwater NaCl: 2,000 ppm
Fresh Water Recovery Rate: 8%
Feed Spacer: 28 mm
Maximum Recommended NaCl: <10,000 ppm
Maximum Operating Pressure 600 PSI

BW-2521 Low Pressure Brackish Water Membranes common applications:

Brackish water treatment
Commercial water treatment systems
Food service
Medical and research institutions
Hospitality industry
Wastewater reuse applications
Drinking water
Chemical processing
Electronic industries
Process water

SP-BW2521 Brackish RO Low Energy Membrane Compatible Model Numbers:

Dupont Filmtec TW30-2521
LG Chem LG BW 2521 R

FAQs on 2521 Commercial RO Membrane

What is a 2521 brackish RO membrane used for?

A 2521 brackish RO membrane treats water with elevated dissolved solids, such as well water or moderately saline municipal sources. The SpiroPure SP-BW2521 is built for small commercial applications requiring reliable performance and consistent water production from brackish feed water.

What is the size of the SpiroPure SP-BW2521 membrane?

The SpiroPure SP-BW2521 brackish RO membrane measures 2.5" x 21" matching standard commercial pressure vessel dimensions. Use cross-reference charts to find compatible membranes.

What is the salt rejection rate of the SP-BW2521 RO membrane?

The SP-BW2521 has a stabilized salt rejection rate of 99.5%, tested at 225 PSI against 2,000 ppm feedwater NaCl. It's rated for feedwater up to 10,000 ppm NaCl maximum, well within typical brackish water conditions.

How much water can the SP-BW2521 produce?

The SpiroPure SP-BW2521 produces an average permeate flow rate of 300 GPD (±15%) at 225 PSI operating pressure, with a fresh water recovery rate of 8%. Actual output depends on your system's real feed water conditions and temperature.

Can this 2521 RO membrane be used for seawater?

No. The SP-BW2521 is rated for brackish water up to 10,000 ppm NaCl, well below seawater's typical 32,000+ ppm salinity. For seawater desalination and other high TDS industrial water filtration, choose the SpiroPure SP-SW2521, engineered specifically for high-salinity, high-pressure applications.

What is the price of the SpiroPure SP-BW2521 membrane?

The SpiroPure SP-BW2521 is priced as an affordable compatible alternative to brand-name brackish water 2521 RO membrane elements like the Dupont Filmtec TW30-2521, without compromising performance. See current pricing on this page for exact figures.