UP Logo  
Home    Products & Accessories 
Technology About Us   Contact Us FAQ
Other RO Membrane Cartridges
> UltraPure RO Membrane

Other Filter Cartridges
> Mixed Bed DI
Melt Blown Sediment
> Activated Carbon
> Ultrafiltration (UF)
> Kwik-Change™
Pleated
> Ceramic
> In-line
Watts® Reverse Osmosis Membrane Cartridges
Watts top quality thin film composite membranes for reverse osmosis systems meet or exceed industry standards, with salt rejection rates ranging from 96% - 99.5%.
Watts Residential RO membrane
• Watts® Residential RO membrane
Watts Commercial RO membrane

• Watts® Commercial RO membrane
How to Order
Email: up_sales@ultrapure.com.sg
Telephone:
+(65) 6440 3680
+(65) 9088 9188
Fax:
+(65) 6440 3679
Terms & Conditions

WATTS' AUTHORIZED
DISTRIBUTOR & STOCKIST
Watts® Residential Membrane Specifications
Data W-1812-24 W-1812-36 W-1812-50 W-1812-75 W-1812-100
Type TFC TFC TFC TFC TFC
Material Polyamide Polyamide Polyamide Polyamide Polyamide
Charge Negative Negative Negative Negative Negative
Configuration Spiral-wound Spiral-wound Spiral-wound Spiral-wound Spiral-wound
Salt rejection 96% 96% 96% 96% 96%
Max. op temp 113oF / 45oC 113oF / 45oC 113oF / 45oC 113oF / 45oC 113oF / 45oC
Max. op Pressure 125 psi 125 psi 125 psi 125 psi 125 psi
Max. turbidity 1 NTU 1 NTU 1 NTU 1 NTU 1 NTU
Max. SDI 5 5 5 5 5
pH range 3-10 3-10 3-10 3-10 3-10
Flux (GPD) 24 36 50 75 100
Note: Specifications based on 77°F (25°) temperature and 60 psid pressure.

Watts® Residential Membranes (thin film composite)
Model Number Application Dimension (OD x L) Capacity (GPD)
W-1812-24 Tap water 1.8" x 11.75" 24
W-1812-36 Tap water 1.8" x 11.75" 36
W-1812-50 Tap water 1.8" x 11.75" 50
W-1812-75 Tap water 1.8" x 11.75" 75
W-1812-100 Tap water 1.8" x 11.75" 100
Note: W-1812-100 membranes are packaged in preservative and should be kept in a cool environment if stored for a prolonged period of time.

Watts® Commercial Membrane Specifications
Data W-2521-TW W-2540-TW W-4021-TW W-4040-TW W-4040-BW
Type TFC TFC TFC TFC TFC
Material Polyamide Polyamide Polyamide Polyamide Polyamide
Charge Negative Negative Negative Negative Negative
Configuration Spiral-wound Spiral-wound Spiral-wound Spiral-wound Spiral-wound
Salt rejection 99.5% 99.5% 99.5% 99.5% 99.5%
Max. op temp 113oF / 45oC 113oF / 45oC 113oF / 45oC 113oF / 45oC 113oF / 45oC
Max. op pressure 400 psi 400 psi 400 psi 400 psi 600 psi
Max. turbidity <1 NTU <1 NTU <1 NTU <1 NTU <1 NTU
Max. SDI <5 <5 <5 <5 <5
pH range 2-11 2-11 2-11 2-11 2-11
Flux (GPD) 300 800 1,050 2,200 2,200
Note: Tap water membrane specifications are based on 225 psi pressure and 77°F temperature.

Watts® Commercial Membranes 
Model Number Application Dimension (OD x L) Capacity (GPD)
W-2521-TW Tap water 2.5" x 21" 300
W-2540-TW Tap water 2.5" x 40" 800
W-4021-TW Tap water 4" x 21" 1,050
W-4040-TW Tap water 4" x 40" 2,200
W-4040-BW Brackish water 4" x 40" 2,200
Note: Watts commercial membranes are packaged in preservatives. Keep in cool environment if stored for prolonged periods of time.

Footer