
Watts-W-4040-TW Membrane For Commercial Reverse Osmosis Systems, 4 IN x 40 IN, Tape Wrapped, Standard Element, 1800 GPD
W-4040-TW Thin Film Composite Membrane
The Watts W-4040-TW is a high-performance thin film composite membrane engineered for commercial tap water applications. With a 1800 GPD capacity and 4 IN x 40 IN dimensions, this tape-wrapped standard element delivers reliable reverse osmosis filtration at up to 125 PSI maximum operating pressure.
Commercial-Grade Performance
1800 GPD Capacity
High daily production rate suitable for demanding commercial tap water applications and light industrial use
Standard 4" x 40" Element
Industry-standard dimensions ensure compatibility with most commercial RO pressure vessels and housings
Thin Film Composite
Advanced TFC membrane technology provides superior rejection rates and consistent filtration performance
Tape Wrapped Design
Durable tape-wrapped construction protects the membrane during handling and installation
125 PSI Max Pressure
Rated for up to 125 PSI maximum operating pressure for reliable commercial system performance
Commercial Applications
Designed specifically for municipal tap water sources in restaurants, offices, and commercial facilities
System Integration
The Watts W-4040-TW membrane is designed for use in commercial reverse osmosis systems equipped with standard 4-inch diameter pressure vessels that accommodate 40-inch length membranes. Compatible with Watts commercial RO systems and most commercial tap water reverse osmosis installations requiring 1800 GPD production capacity. Ideal for restaurants, small manufacturing facilities, car washes, laboratories, and office buildings requiring high-quality purified water from municipal sources.
Watts has been manufacturing reliable water treatment components for commercial and industrial applications for decades, delivering proven performance in thousands of installations worldwide.
W-4040-TW Thin Film Composite Membrane
The Watts W-4040-TW is a high-performance thin film composite membrane engineered for commercial tap water applications. With a 1800 GPD capacity and 4 IN x 40 IN dimensions, this tape-wrapped standard element delivers reliable reverse osmosis filtration at up to 125 PSI maximum operating pressure.
Commercial-Grade Performance
1800 GPD Capacity
High daily production rate suitable for demanding commercial tap water applications and light industrial use
Standard 4" x 40" Element
Industry-standard dimensions ensure compatibility with most commercial RO pressure vessels and housings
Thin Film Composite
Advanced TFC membrane technology provides superior rejection rates and consistent filtration performance
Tape Wrapped Design
Durable tape-wrapped construction protects the membrane during handling and installation
125 PSI Max Pressure
Rated for up to 125 PSI maximum operating pressure for reliable commercial system performance
Commercial Applications
Designed specifically for municipal tap water sources in restaurants, offices, and commercial facilities
System Integration
The Watts W-4040-TW membrane is designed for use in commercial reverse osmosis systems equipped with standard 4-inch diameter pressure vessels that accommodate 40-inch length membranes. Compatible with Watts commercial RO systems and most commercial tap water reverse osmosis installations requiring 1800 GPD production capacity. Ideal for restaurants, small manufacturing facilities, car washes, laboratories, and office buildings requiring high-quality purified water from municipal sources.
Watts has been manufacturing reliable water treatment components for commercial and industrial applications for decades, delivering proven performance in thousands of installations worldwide.
Original: $908.15
-65%$908.15
$317.85Description
W-4040-TW Thin Film Composite Membrane
The Watts W-4040-TW is a high-performance thin film composite membrane engineered for commercial tap water applications. With a 1800 GPD capacity and 4 IN x 40 IN dimensions, this tape-wrapped standard element delivers reliable reverse osmosis filtration at up to 125 PSI maximum operating pressure.
Commercial-Grade Performance
1800 GPD Capacity
High daily production rate suitable for demanding commercial tap water applications and light industrial use
Standard 4" x 40" Element
Industry-standard dimensions ensure compatibility with most commercial RO pressure vessels and housings
Thin Film Composite
Advanced TFC membrane technology provides superior rejection rates and consistent filtration performance
Tape Wrapped Design
Durable tape-wrapped construction protects the membrane during handling and installation
125 PSI Max Pressure
Rated for up to 125 PSI maximum operating pressure for reliable commercial system performance
Commercial Applications
Designed specifically for municipal tap water sources in restaurants, offices, and commercial facilities
System Integration
The Watts W-4040-TW membrane is designed for use in commercial reverse osmosis systems equipped with standard 4-inch diameter pressure vessels that accommodate 40-inch length membranes. Compatible with Watts commercial RO systems and most commercial tap water reverse osmosis installations requiring 1800 GPD production capacity. Ideal for restaurants, small manufacturing facilities, car washes, laboratories, and office buildings requiring high-quality purified water from municipal sources.
Watts has been manufacturing reliable water treatment components for commercial and industrial applications for decades, delivering proven performance in thousands of installations worldwide.





