Prefilters made of dense borosilicate glass fibers:

• Biologically inert with high chemical and thermal resistance

• Unaffected by humidity and can be stored indefinitely

• Can be easily sterilized by autoclave or baking

• Inquire - AVAILABLE in 10mm, 13mm, 16mm, 20mm, 21mm, 22mm, 24mm,
25mm, 26mm, 35mm, 37mm, 45mm, 50mm, 55mm, 70mm, 75mm, 90mm
102mm, 110mm, 124mm, 125mm, 150mm, 257mm, 293mm diameters.
8 x 10 inch sheets.

Applications:
• Use as a prefilter to extend membrane life
• Water/air polution analysis
• Liquid clarification
• Cell harvesting

Product Specifications

Type ............	Applications/Comments ............................................	Weight (g/m²) ............	Thickness (mm) .............	Nominal Rating(μm) .............	Binder ............	Max. Temp (°C) .............
GA-55	General purpose paper; suitable for air pollution monitoring	55	0.21	0.6	None	500
GF-75	Most retentive grade; suitable for collection of IgC or other very fine protein precipitates; use to clarify aggressive chemical solutions; suitable for TCLP (EPA Method 1311) when used with KST142.	75	0.35	0.3	None	500
GA-100	General purpose paper; suitable for filtration of precipitated cells or proteins, and air pollution monitoring	110	0.44	1.0	None	500
GA-200	Thick paper; suitable for filtering viscous fluids such as liquid sugars and gels	175	0.74	0.8	None	500
GB-100R	Has low trace metal content; suitable for DNA?RNA and protein precipitates	95	0.40	0.6	None	500
GB-140	Thick with moderate wet strength and loading capacity; suitable for industrial waste analysis	140	0.56	0.4	None	500
GC-50	For use with 0.45μm or smaller membrane filter; suitable for scintillation counting and filtration of suspensions in industrial and waste water	48	0.19	0.5	None	500
GC-90	High wet strength; suitable for clinical screening	100	0.30	0.5	Organic	120
GD-120	High wet strength and high loading capacity	123	0.51	0.9	None	500
GS-25	High wet strength with moderate loading capacity	70	0.22	0.6	Organic	120
DP-70	High wet strength and loading capacity; suitable for dust mearurement	170	0.52	0.6	Organic	120

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If used as a prefilter, the filter should have a slightly smaller diameter than the filter membrane it precedes:

Filter Holder Model (Vacuum Type) -----------------------		Recommended Prefilter Diameter (mm)
Filter Holder Model (Vacuum Type) -----------------------		If preceding final filter ------------------	If used as final filter ----------------
25mm models	KG 25, KGS 25	16mm	25mm
47mm models	KG 47, KGS 47, KSF 47, KGS 47 TF	35mm	47mm
90mm models	KG 90, KGS 90	70mm	90mm

Filter Holder Model (Positive Pressure Type) -----------------------		Recommended Prefilter Diameter (mm)
		If preceding final filter -----------------	If used as final filter ----------------
13mm models	KS 13	8mm	13mm
25mm models	KS 25, LS 25, LP 25, KS 25F, PP 25	21mm	25mm
47mm models	KS 47, KST 47, KS 47F, LS 47HP	35mm	47mm
47mm models	PP 47, PFA 47	42mm	47mm

GA-55 Glass Fiber Filter, 100/pack

GA-55 Glass Fiber Filters, 25mm Diameter, 100/pack

Compare with Whatman GF/A, S&S 31

SKU: GA5525MM

Free shipping

Price: $29.00

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GA-55 Glass Fiber Filter, 100/pack

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