Variety of pore sizes and membrane types for prefiltration and clarification. Meets virtually all aqueous sample filtration needs. Widely used in dissolution testing. The GxF multi-layered prefilter provides two to four times the throughput of standard glass fiber prefilter devices, allowing for quick and easy filtration of your most difficult-to-filter samples. Glass fiber reduces clogging. Use alone or in series with final membrane filter to increase flow rate and throughput. Large, 37 mm size filters very dirty samples.

Materials of Construction
Filter Media: Versapor ® (hydrophilic acrylic copolymer on a nonwoven support), HT Tuffryn ® (hydrophilic polysulfone), and Supor ® (hydrophilic polyethersulfone) membranes, or borosilicate glass fiber  25 and 32 mm Housing: Modified acrylic 13, 25 PSF, and 37 mm Housing: Polypropylene 

Membrane Pore Size
0.2, 0.45, 0.8, 1.2, 5, and 10 µm
Glass Fiber: 40 - 1 µm

Effective Filtration Area
13 mm: 1.0 cm2
25 mm: 2.8 cm2
25 mm PSF: 3.9 cm2
32 mm: 5.8 cm2
37 mm: 7.5 cm2

Sample Volume
13 mm: < 10 mL
25 mm: < 100 mL
25 mm PSF: < 150 mL
32 mm: < 175 mL
37 mm: < 200 mL

Inlet/Outlet Connections
Female luer-lok inlet, male slip luer outlet

Typical Hold-up Volume(with air purge)
13 mm: < 30 µL
25 mm: < 50 µL
25 mm PSF: < 150 µL
32 mm: < 100 µL
37 mm: < 500 µL 

Maximum Operating Temperature
55 °C (131 °F)
Glass Fiber: 135 ºC (275 ºF)

Maximum Operating Pressure
5.2 bar (520 kPa, 75 psi)