
Watts-W-4040-LE Membrane for Commercial Reverse Osmosis Systems, 4 IN x 40 IN, Tape Wrapped, Low Energy, 2200 GPD
4" x 40" Low Energy Thin Film Membrane for High-Volume Commercial Systems
The Watts-W-4040-LE delivers 2200 gallons per day at lower operating pressure, reducing energy costs while maintaining consistent water quality in commercial reverse osmosis installations.
Engineered for efficiency in commercial environments
Low Energy Design
Operates at lower pressure than standard membranes, reducing pump wear and electricity consumption while maintaining full production capacity.
2200 GPD Output
Produces up to 2200 gallons daily, suitable for restaurants, offices, light industrial applications, and other commercial water treatment needs.
Thin Film Composite
High-rejection thin film technology removes dissolved solids, heavy metals, and contaminants to deliver consistent commercial-grade water quality.
Tape Wrapped Construction
Secure tape wrapping prevents membrane telescoping and maintains structural integrity under variable pressure conditions in commercial systems.
Commercial Grade
Built for continuous-duty commercial applications where reliability and consistent performance are non-negotiable requirements.
Standard 4" x 40" commercial housings
The Watts-W-4040-LE fits any commercial reverse osmosis system designed for standard 4 inch by 40 inch membranes. Compatible with Watts commercial RO housings and most other manufacturers using the 4040 format. Maximum operating pressure is 125 PSI, minimum is 50 PSI. Verify your system's pressure rating and flow requirements before installation.
Replacement schedule for commercial use
Membrane Replacement
Replace the Watts-W-4040-LE membrane when permeate quality declines, flow rate drops significantly, or at manufacturer's recommended interval based on source water conditions.
Pre-Filter Changes
Replace sediment and carbon pre-filters regularly to protect the membrane from fouling, chlorine damage, and premature degradation.
Membrane Cleaning
Use approved membrane cleaning solutions when flow rate or rejection declines but membrane has not reached end of service life. Follow Watts cleaning protocols.
System Monitoring
Check TDS levels, pressure gauges, and flow rates monthly to catch performance issues early and extend membrane lifespan.
Lower Operating Costs
Low energy design reduces electricity consumption and pump maintenance expenses over the membrane's service life.
Consistent Quality
Thin film composite technology maintains high rejection rates throughout the membrane's lifespan for reliable water quality.
Watts Reliability
Manufactured by Watts to commercial specifications with quality control standards for demanding professional applications.
Standard Fitment
Drop-in replacement for any 4040 membrane in commercial systems without modification or special adapters required.
4" x 40" Low Energy Thin Film Membrane for High-Volume Commercial Systems
The Watts-W-4040-LE delivers 2200 gallons per day at lower operating pressure, reducing energy costs while maintaining consistent water quality in commercial reverse osmosis installations.
Engineered for efficiency in commercial environments
Low Energy Design
Operates at lower pressure than standard membranes, reducing pump wear and electricity consumption while maintaining full production capacity.
2200 GPD Output
Produces up to 2200 gallons daily, suitable for restaurants, offices, light industrial applications, and other commercial water treatment needs.
Thin Film Composite
High-rejection thin film technology removes dissolved solids, heavy metals, and contaminants to deliver consistent commercial-grade water quality.
Tape Wrapped Construction
Secure tape wrapping prevents membrane telescoping and maintains structural integrity under variable pressure conditions in commercial systems.
Commercial Grade
Built for continuous-duty commercial applications where reliability and consistent performance are non-negotiable requirements.
Standard 4" x 40" commercial housings
The Watts-W-4040-LE fits any commercial reverse osmosis system designed for standard 4 inch by 40 inch membranes. Compatible with Watts commercial RO housings and most other manufacturers using the 4040 format. Maximum operating pressure is 125 PSI, minimum is 50 PSI. Verify your system's pressure rating and flow requirements before installation.
Replacement schedule for commercial use
Membrane Replacement
Replace the Watts-W-4040-LE membrane when permeate quality declines, flow rate drops significantly, or at manufacturer's recommended interval based on source water conditions.
Pre-Filter Changes
Replace sediment and carbon pre-filters regularly to protect the membrane from fouling, chlorine damage, and premature degradation.
Membrane Cleaning
Use approved membrane cleaning solutions when flow rate or rejection declines but membrane has not reached end of service life. Follow Watts cleaning protocols.
System Monitoring
Check TDS levels, pressure gauges, and flow rates monthly to catch performance issues early and extend membrane lifespan.
Lower Operating Costs
Low energy design reduces electricity consumption and pump maintenance expenses over the membrane's service life.
Consistent Quality
Thin film composite technology maintains high rejection rates throughout the membrane's lifespan for reliable water quality.
Watts Reliability
Manufactured by Watts to commercial specifications with quality control standards for demanding professional applications.
Standard Fitment
Drop-in replacement for any 4040 membrane in commercial systems without modification or special adapters required.
Description
4" x 40" Low Energy Thin Film Membrane for High-Volume Commercial Systems
The Watts-W-4040-LE delivers 2200 gallons per day at lower operating pressure, reducing energy costs while maintaining consistent water quality in commercial reverse osmosis installations.
Engineered for efficiency in commercial environments
Low Energy Design
Operates at lower pressure than standard membranes, reducing pump wear and electricity consumption while maintaining full production capacity.
2200 GPD Output
Produces up to 2200 gallons daily, suitable for restaurants, offices, light industrial applications, and other commercial water treatment needs.
Thin Film Composite
High-rejection thin film technology removes dissolved solids, heavy metals, and contaminants to deliver consistent commercial-grade water quality.
Tape Wrapped Construction
Secure tape wrapping prevents membrane telescoping and maintains structural integrity under variable pressure conditions in commercial systems.
Commercial Grade
Built for continuous-duty commercial applications where reliability and consistent performance are non-negotiable requirements.
Standard 4" x 40" commercial housings
The Watts-W-4040-LE fits any commercial reverse osmosis system designed for standard 4 inch by 40 inch membranes. Compatible with Watts commercial RO housings and most other manufacturers using the 4040 format. Maximum operating pressure is 125 PSI, minimum is 50 PSI. Verify your system's pressure rating and flow requirements before installation.
Replacement schedule for commercial use
Membrane Replacement
Replace the Watts-W-4040-LE membrane when permeate quality declines, flow rate drops significantly, or at manufacturer's recommended interval based on source water conditions.
Pre-Filter Changes
Replace sediment and carbon pre-filters regularly to protect the membrane from fouling, chlorine damage, and premature degradation.
Membrane Cleaning
Use approved membrane cleaning solutions when flow rate or rejection declines but membrane has not reached end of service life. Follow Watts cleaning protocols.
System Monitoring
Check TDS levels, pressure gauges, and flow rates monthly to catch performance issues early and extend membrane lifespan.
Lower Operating Costs
Low energy design reduces electricity consumption and pump maintenance expenses over the membrane's service life.
Consistent Quality
Thin film composite technology maintains high rejection rates throughout the membrane's lifespan for reliable water quality.
Watts Reliability
Manufactured by Watts to commercial specifications with quality control standards for demanding professional applications.
Standard Fitment
Drop-in replacement for any 4040 membrane in commercial systems without modification or special adapters required.





