Industry’s Filtration Partner
The C-Series family, a triacetate/diacetate blend, has a higher flux and better mechanical stability than standard cellulose acetate. C-Series elements offer a lower per element cost and increased chlorine resistance compared to thin-film elements.

CD High Rejection Elements are used for brackish water desalination and process stream concentration at 425 psig operating pressure (2,930 kPa).
Unit of Measure

Element Specification


N/A C-series, Cellulose Acetate

Flow Average

N/A 6000 gpd22.7 m³/day

Salt Rejection Average (NaCl)

N/A 98.5 %

Salt Rejection Minimum (NaCl)

N/A 96.5 %


N/A Average salt rejection after 24 hours operation. Individual flow rate may vary +25%/-15%.
Testing conditions: 2,000ppm NaCl solution at 425psig (2,930 kPa) operating pressure, 77ºF, pH 6.5 and 15% recovery.

Active Area

N/A 390 ft²36.2 m²

Outer Wrap

N/A Fiberglass

Part Number

N/A 1206837

Dimensions and Weight

Dimension A (Length)

N/A 40.0 in101.6 cm
Dimension B1 N/A 1.125 in2.86 cm

Dimension C (Outside Diameter)

N/A 7.9 in20.1 cm

Boxed Weight

N/A 32 lb14.5 kg

Operating and CIP parameters

Typical Operating Pressure

N/A 140 - 400 psig965 - 2758 kPa

Typical Operating Flux

N/A 10 - 18 GFD17 - 30 LMH

Maximum Pressure

N/A 450 psig3103 kPa

Maximum Operating Temperature

N/A 86 ºF30 ºC

Maximum Cleaning Temperature

N/A 86 ºF30 ºC

Operating Range Recommended pH

N/A 5.0 - 6.5

Cleaning Range Recommended pH

N/A 3.0 - 8.0

Recommended Pressure Drop Over an Element

N/A 12 psig83 kPa

Recommended Pressure Drop Per Housing

N/A 50 psig345 kPa

Chlorine Tolerance

N/A 1 ppm Maximum Continuous
30 ppm for 30 min. During Sanitization


N/A NTU < 1 SDI < 5


N/A These elements ship dry.
Trademark of General Electric Company; may be registered in one or more countries.

  • 1 Internal diameter unless specified OD (outside diameter).