Commercial RO Membrane Replacement

Q: How often should I schedule commercial RO membrane replacement?

Generally your commercial RO membrane element will last for around 2 to 4 years. This number can vary by each unique situation, however, such as by the water quality, how much the filter is used, and your system maintenance practices.

Q: What factors affect the lifespan of a commercial RO membrane?

How long your commercial membrane lasts will mostly depend upon water quality, usage, and maintenance practices. Higher contaminant levels in water and usage will shorten a cartridge’s life span. But proper maintenance practices can help extend a membrane’s working time.

Q: Which type of commercial RO membrane is best for high TDS water?

All Filters brackish water BW series commercial RO membrane filters are better for water conditions with higher total dissolved solids (TDS). If you are looking to reduce high rates of sodium, the seawater desalination SW series filter is the best option.

Q: What is a commercial RO membrane and how does it work?

These membranes use reverse osmosis technology to reduce high levels of TDS down to 0.0001 micron in size. Commercial membranes are able to handle larger amounts of water for applications like smaller hotels, whole house systems, car washes, and agricultural filtration. Read our handy commercial membrane blog to learn more.

Q: What are the signs that my commercial RO membrane needs replacement?

To know how often to change your specific commercial RO filter cartridge, look for signs of membrane failure. Signs that your membrane is no longer performing as well include slower flow rates and higher levels of TDS leaching into the filtered water.

SpiroPure commercial reverse osmosis (RO) membrane elements are used in different types of systems, like restaurants, hotels, and office buildings. Brackish water membranes produce high-quality water for brackish and tap water applications with low pressure, providing high permeate flow. For very low pressure and low energy consumption, we offer extremely low-pressure RO membrane elements for ultra energy savings! Our sea water membranes are perfect for treating seawater and other high-sodium applications, with a high NaCl rejection rate. Our commercial membranes are offered in 2.5" x 21" (2521), 2.5” x 40” (2540), and 4” x 21” (4021) sizes.

Shop by Membrane Size

Sizes shown are nominal dimensions. Confirm the existing membrane model, feedwater requirements and system specifications before selecting a replacement. Matching dimensions alone does not confirm compatibility.

	Membrane Type	Model	Rejection Rate	Average Permeate ±15%	Feedwater NaCl	Fresh Water Recovery Rate	Concentration of Salt Solution (Feedwater NaCl)	Feed Spacer	Maximum Recommended NaCl	Maximum Operating Pressure
Commercial RO Membrane	Extremely Low Pressure	SP-XL2521 SP-XL4021	98.5%	300 GPD @ 100 psi 950 GPD @ 100 psi	500 ppm	8%	500 ppm	28 mil	< 2,000 ppm	600 psi
Brackish Water	SP-BW2521 SP-BW2540	99.5%	300 GPD @ 225 psi 750 GPD @ 225 psi	2,000 ppm	8%	2,000 ppm	28 mil	< 10,000 ppm	600 psi
Seawater Desalination	SP-SW2521 SP-SW2540	99.5% 99.6%	270 @ 800 psi 600 GPD @ 800 psi	32,000 ppm	4% 8%	32,000 ppm	28 mil	< 40,000 ppm	1,000 psi 1,200 psi

Membrane Type

Model

Rejection Rate

Average Permeate ±15%

Feedwater NaCl

Fresh Water Recovery Rate

Concentration of Salt Solution (Feedwater NaCl)

Feed Spacer

Maximum Recommended NaCl

Maximum Operating Pressure