Watts-(W-4021-TW) Membrane for Commercial Reverse Osmosis Systems, 4 IN x 21 IN, Tape Wrapped, Standard Element, 800 GPD
W-4021-TW Thin Film Composite Membrane
The Watts W-4021-TW is a thin film composite reverse osmosis membrane engineered for commercial applications requiring reliable, high-volume water treatment. With an 800 gallons per day production capacity and 125 psi maximum operating pressure, this 4" x 21" tape-wrapped membrane delivers consistent performance in standard element housings across foodservice, laboratory, and light industrial settings.
Built for Commercial Demand
800 GPD Capacity
High-volume production rate suitable for commercial water treatment applications requiring consistent daily output
Thin Film Composite
Advanced TFC membrane technology provides superior rejection rates and stable performance across varying feed conditions
Standard 4" x 21" Element
Industry-standard dimensions fit most commercial RO housings and systems without modification or adapters
Tape Wrapped Construction
Durable tape-wrapped design prevents membrane telescoping and ensures proper feed channel geometry under pressure
125 PSI Max Pressure
Rated for operating pressures up to 125 psi, compatible with most commercial booster pump configurations
Commercial Grade
Designed and tested for continuous operation in demanding commercial environments with consistent quality standards
System Fitment
The Watts W-4021-TW membrane is designed for use in commercial reverse osmosis systems that accept 4-inch diameter by 21-inch length standard elements. This includes Watts commercial RO systems, as well as compatible housings from other manufacturers using standard 4021 membrane specifications. Common applications include restaurants, coffee shops, ice machines, laboratories, small beverage production, dialysis pre-treatment, and light industrial water purification where 800 gallons per day production meets daily demand.
Watts manufactures commercial water treatment components to meet NSF standards and consistent quality specifications for professional applications.
W-4021-TW Thin Film Composite Membrane
The Watts W-4021-TW is a thin film composite reverse osmosis membrane engineered for commercial applications requiring reliable, high-volume water treatment. With an 800 gallons per day production capacity and 125 psi maximum operating pressure, this 4" x 21" tape-wrapped membrane delivers consistent performance in standard element housings across foodservice, laboratory, and light industrial settings.
Built for Commercial Demand
800 GPD Capacity
High-volume production rate suitable for commercial water treatment applications requiring consistent daily output
Thin Film Composite
Advanced TFC membrane technology provides superior rejection rates and stable performance across varying feed conditions
Standard 4" x 21" Element
Industry-standard dimensions fit most commercial RO housings and systems without modification or adapters
Tape Wrapped Construction
Durable tape-wrapped design prevents membrane telescoping and ensures proper feed channel geometry under pressure
125 PSI Max Pressure
Rated for operating pressures up to 125 psi, compatible with most commercial booster pump configurations
Commercial Grade
Designed and tested for continuous operation in demanding commercial environments with consistent quality standards
System Fitment
The Watts W-4021-TW membrane is designed for use in commercial reverse osmosis systems that accept 4-inch diameter by 21-inch length standard elements. This includes Watts commercial RO systems, as well as compatible housings from other manufacturers using standard 4021 membrane specifications. Common applications include restaurants, coffee shops, ice machines, laboratories, small beverage production, dialysis pre-treatment, and light industrial water purification where 800 gallons per day production meets daily demand.
Watts manufactures commercial water treatment components to meet NSF standards and consistent quality specifications for professional applications.
Original: $617.58
-65%$617.58
$216.15Description
W-4021-TW Thin Film Composite Membrane
The Watts W-4021-TW is a thin film composite reverse osmosis membrane engineered for commercial applications requiring reliable, high-volume water treatment. With an 800 gallons per day production capacity and 125 psi maximum operating pressure, this 4" x 21" tape-wrapped membrane delivers consistent performance in standard element housings across foodservice, laboratory, and light industrial settings.
Built for Commercial Demand
800 GPD Capacity
High-volume production rate suitable for commercial water treatment applications requiring consistent daily output
Thin Film Composite
Advanced TFC membrane technology provides superior rejection rates and stable performance across varying feed conditions
Standard 4" x 21" Element
Industry-standard dimensions fit most commercial RO housings and systems without modification or adapters
Tape Wrapped Construction
Durable tape-wrapped design prevents membrane telescoping and ensures proper feed channel geometry under pressure
125 PSI Max Pressure
Rated for operating pressures up to 125 psi, compatible with most commercial booster pump configurations
Commercial Grade
Designed and tested for continuous operation in demanding commercial environments with consistent quality standards
System Fitment
The Watts W-4021-TW membrane is designed for use in commercial reverse osmosis systems that accept 4-inch diameter by 21-inch length standard elements. This includes Watts commercial RO systems, as well as compatible housings from other manufacturers using standard 4021 membrane specifications. Common applications include restaurants, coffee shops, ice machines, laboratories, small beverage production, dialysis pre-treatment, and light industrial water purification where 800 gallons per day production meets daily demand.
Watts manufactures commercial water treatment components to meet NSF standards and consistent quality specifications for professional applications.
