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Membrane Filter Accessories

By Whatman/GE Healthcare
Membrane Filter Accessories

Whatman offers a choice of holders for use with membrane filters.

Vacuum type glass holders are produced from borosilicate glass and available with a choice of support screen. They are suitable for aqueous and organic solvent filtration. The funnel seal ensures that the sample does not bypass the membrane and that particulates are retained on the surface of the membrane. The sintered glass support is recommended for filtration and biological analysis. The 304 stainless steel support screen is suitable for use with proteinaceous solutions.

Syringe filter type membrane filter holders are available in stainless steel and polypropylene with luer fittings for use with a standard syringe. The holders are designed for the quick and easy clarification, sterilization, and removal of particulates from small volume samples, typically for HPLC applications. The holders contain PTFE gaskets and O-rings and allow the membrane to be autoclaved in place without the filter sticking to the holder.

Specifications:

Diameter (mm) Membrane Holder Filter Systems — Glass Reservoir Volume (mL) Filter Surface Area (cm2) Prefilter Diameter (mm)
25 FG 25 25 2.1 16
25 FG 25R 50 2.1 13
25 FG 25S 25 2.1 16
47 FG 47 300 9.6 35
47 FG 47S 300 9.6 35
90 FG 90 1000 38.5 70

Note: 25mm holders have No. 5 stopper, fitting 125mL flasks; 47mm and 90mm holders have No. 8 stoppers, fitting standard manifolds and 1L flasks.

Membrane Filter Holders

           
Cat.No. Name Diam PK    
15-1960-002 Glass Support - 25mL - FG 25 Sintered Glass 25mm $463.26
1/PK
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15-1960-004 Glass Support - 300mL - FG 47 Sintered Glass 47 $501.97
1/PK
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15-1960-009 Glass Support - 1000mL - FG 90 Sintered Glass 90 $1438.48
1/PK
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15-1960-032 Glass Support - 50mL - FG25R Sintered Glass 25 $515.71
1/PK
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15-1960-052 Stainless Steel Support - 25mL - FG 25S 304 stainless steel 100 mesh screen 25 $504.47
1/PK
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15-1960-054 Stainless Steel Support - 300mL - FG 47S 304 stainless steel 100 mesh screen 47 $529.44
1/PK
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Polyester Drain Discs

The disc is binder-free and has a thickness of 100µm. It is recommended for use between membrane layers in serial filtration applications and also for use as membrane support with Nuclepore polycarbonate membranes.

           
Cat.No. Name Diam PK    
15-230300 Drain Disc 10mm $79.06
100/PK
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15-230500 Drain Disc 22 $84.25
100/PK
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15-230600 Drain Disc 25 $87.53
100/PK
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15-230800 Drain Disc 37 $92.59
100/PK
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15-231100 Drain Disc 47 $107.69
100/PK
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