Cytiva Whatman™ Glass Microfiber Prefilter, 2μm Particle Retention Rating

Multilayer graded density filters for rapid and efficient filtration of samples with high solids content. Whatman™ Glass Microfiber Prefilters are designed with a coarse glass filter top layer (10μm) meshed with a finer layer. The multigrade glass filter traps larger particles in its pores of the coarse layer, medium-sized particles in the interface meshing, and smaller particles in the interstices of the fine layer.

Catalog Number	Mfr. No.	Diameter (Metric)
09-874-86	Cytiva 1842090	90 mm
09-874-85	Cytiva 1842047	47 mm

Description

• Can filter nearly twice as much sample volume as that of a single-density prefilter
• Compared to an unprotected membrane, three to seven times greater sample volume can be filtered
• Higher particulate loading capacity and faster flow rates than uniform prefilters
• Excellent particle retention (both large and small particles)
• 100% borosilicate glass, binder-free
• Extends life of final filter membrane

Specifications

• Airflow Rate: 1.5 s/100 ml/1.56 cm²
• Format: Disc
• Particle Retention: >2 μm
• For Use With (Application): Prefilter with high loading capacity and good flow rates.
• Quantity: 40/pack
• Temperature (English) Max.: 932°F
• Thickness (English): 0.029 in.
• Type: Prefilter

• Description: GE’s Whatman GMF 150 prefilters are multilayer graded density filters for rapid and efficient filtration of samples with high solids content.
• Material: Borosilicate Glass
• Flow Rate: 1.5 sec./100mL/1.56cm²
• Grade: Grade GMF 150
• Shape: Circle
• Temperature (Metric) Max: 500°C
• Thickness (Metric): 750 μm
• Waterflow Rate: 887 mL/min