Glass Microfiber Disc Filters

Glass Microfiber (GMF) depth filters are designed to trap particulates within the random matrix of glass fibers found within the thickness of the media. The efficiency rating of the filters is characteristic of the complex pore structure that develops as the fibers overlap. The purity of the GMF filter is dictated by the presence of, if any, binder material that acts as a strengthening agent and aids in holding the fibers together.

Wyvern Scientific carries a wide range of glass microfiber media grades and devices including cut discs of all sizes, syringe filters and extraction thimbles.

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Grade 934-AH ®	Grade TCLP	Grade A	Grade B
Grade C	Grade D	Grade E	Grade F

Grade 934-AH ®

Specs	Filters/Pk	Catalog #	Comparable To	Our Price	You Save
2.1cm diameter	100	AH2100	Ahlstrom 1610-0210 Millipore AP4002100 Thomas Brand 1229B11 Whatman 1827-021	$30.69
VSS 2.1cm diameter	100	VSS2100	Ahlstrom 1610-0210 Millipore AP4002100 Thomas Brand 1229B11 Whatman 1827-021	$19.69	29%
2.4cm diameter	100	AH2400	Ahlstrom 1610-0240 Millipore AP4002405 Thomas Brand 1229B12 Whatman 1827-024	$33.55
2.5cm diameter	100	AH2500	Ahlstrom 1610-0250 Millipore AP4002500 Thomas Brand 1229B13 Whatman 1827-025	$31.19
3.5cm diameter	100	AH3500	Thomas Brand 1229B14 Whatman 1827-035	$44.63
3.7cm diameter	100	AH3700	Millipore AP4003705 Thomas Brand 1229B15 Whatman 1827-037	$44.63	27%
4.25cm diameter	100	AH4250	Ahlstrom 1610-0425 Millipore AP4004200 Thomas Brand 1229B16 Whatman 1827-042	$49.61	3%
4.7cm diameter	100	AH4700	Ahlstrom 1610-0470 Millipore AP4004705 Thomas Brand 1229B17 Whatman 1827-047	$59.33	3%
VSS 4.7cm diameter	100	VSS4700	Ahlstrom 1610-0470 Millipore AP4004705 Thomas Brand 1229B17 Whatman 1827-047	$41.61	32%
5.5cm diameter	100	AH5500	Ahlstrom 1610-0550 Millipore AP4005500 Thomas Brand 1229B18 Whatman 1827-055	$61.81	3%
7.0cm diameter	100	AH7000	Ahlstrom 1610-0700 Millipore AP4007000 Thomas Brand 1229B19 Whatman 1827-070	$80.45	3%
9.0cm diameter	100	AH9000	Ahlstrom 1610-0900 Millipore AP4009000 Thomas Brand 1229B20 Whatman 1827-090	$118.65	11%
11.0cm diameter	50	AH1100-2	Millipore AP4011000 Thomas Brand 1229B25 Whatman 1827-110	$77.95
11.0cm diameter	100	AH1100	Ahlstrom 1610-1100 Thomas Brand 1229B21 Whatman 1827-110	$148.51	3%
12.5cm diameter	50	AH1250-2	Millipore AP4012450 Thomas Brand 1229B26 Whatman 1827-125	$85.71	6%
12.5cm diameter	100	AH1250	Ahlstrom 1610-1250 Thomas Brand 1229B22 Whatman 1827-125	$202.63
15.0cm diameter	50	AH1500-2	Millipore AP4015050 Thomas Brand 1229B27 Whatman 1827-150	$181.73
15.0cm diameter	100	AH1500	Ahlstrom 1610-1500 Thomas Brand 1229B23 Whatman 1827-150	$258.53
8x10 inch sheets	50	AHS810-2	Millipore AP408X105 Thomas Brand 1229B28 Whatman 1827-866	$269.86
8x10 inch sheets	100	AHS810	Thomas Brand 1229B24 Whatman 1827-866	$427.27

934-AH® - Fine porosity, fast flow rate, with a 1.5µm size particle retention. This material is the standard for suspended particle analysis in water and cell harvesting. RIA scintillation counting. Binderless borosilicate glass microfiber.

Grade TCLP

Specs	Filters/Pk	Catalog #	Comparable To	Our Price	You Save
Acid Treated, 4.7cm	100	TCLP-1	Ahlstrom 0250-0470 Thomas Brand 1229B43 Whatman 1810-047	$108.88	24%
Acid Treated, 9.0cm	50	TCLP-2	Ahlstrom 0250-0900 Thomas Brand 1229B44 Whatman 1810-090	$95.14	16%
Acid Treated, 11.0cm	50	TCLP-3	Ahlstrom 0250-1100 Thomas Brand 1229B45 Whatman 1810-110	$133.12	19%
Acid Treated, 12.5cm	50	TCLP-4	Ahlstrom 0250-1250 Thomas Brand 1229B46 Whatman 1810-125	$186.71	23%
Acid Treated, 14.2cm	50	TCLP-5	Ahlstrom 0250-1420 Thomas Brand 1229B47 Whatman 1810-142	$226.41	24%
Acid Treated, 15.0cm	50	TCLP-6	Ahlstrom 0250-1500 Thomas Brand 1229B48 Whatman 1810-150	$245.59	24%

Binder-free, Borosilicate Glass fiber filters have 0.7 micron pore size, meet U.S. EPA Method No. 1311 requirements for Toxicity Characteristic Leaching Procedure (TCLP).

Grade A

Specs	Filters/Pk	Catalog #	Comparable To	Our Price	You Save
A 2.1cm diameter	100	A2100	Ahlstrom 1110-0210 Millipore APFA02100 Whatman 1820-021	$28.07	22%
A 2.4cm diameter	100	A2400	Ahlstrom 1110-0240 Millipore APFA02400 Whatman 1820-024	$28.07	21%
A 2.5cm diameter	100	A2500	Ahlstrom 1110-0250 Millipore APFA02500 Whatman 1820-025	$30.06	16%
A 3.5cm diameter	100	A3500		$31.11	16%
A 3.7cm diameter	100	A3700	Millipore APFA03700 Whatman 1820-037	$34.75	16%
A 4.25cm diameter	100	A4250	Ahlstrom 1110-0425 Millipore APFA04200 Whatman 1820-042	$36.93	16%
A 4.7cm diameter	100	A4700	Ahlstrom 1110-0470 Millipore APFA04700 Whatman 1820-047	$37.74	21%
A 5.5cm diameter	100	A5500	Ahlstrom 1110-0550 Millipore APFA05500 Whatman 1820-055	$42.72	15%
A 7.0cm diameter	100	A7000	Ahlstrom 1110-0700 Millipore APFA07000 Whatman 1820-070	$51.98	16%
A 9.0cm diameter	50	A9000-2	Millipore APFA09050	$40.68	15%
A 9.0cm diameter	100	A9000	Ahlstrom 1110-0900 Whatman 1820-090	$77.33	13%
A 11.0cm diameter	100	A1100	Ahlstrom 1110-1100 Whatman 1820-110	$108.56	25%
A 12.5cm diameter	100	A1250	Ahlstrom 1110-1250 Whatman 1820-125	$137.45	24%
A 15.0cm diameter	100	A1500	Ahlstrom 1110-1500 Whatman 1820-150	$186.60	41%

Grade A - Fine porosity, fast flow rate, with a 1.6µm size particle retention. Frequently used in the filtration of precipitated proteins and cells. Ideally suited for use as a filter for radioimmuno assay of weak beta emitters by scintillation counting and gravimetric determination of airborne particulate. Binderless borosilicate glass micro fiber.

Grade B

Specs	Filters/Pk	Catalog #	Comparable To	Our Price	You Save
B 2.1cm diameter	100	B2100	Ahlstrom 1210-0210 Millipore APFB02100 Whatman 1821-021	$47.47	15%
B 2.4cm diameter	100	B2400	Ahlstrom 1210-0240 Millipore APFB02400 Whatman 1821-024	$48.61	15%
B 2.5cm diameter	100	B2500	Ahlstrom 1210-0250 Millipore APFB02500 Whatman 1821-025 Pall 66198	$51.31	17%
B 3.5cm diameter	100	B3500		$58.42	13%
B 3.7cm diameter	100	B3700	Millipore APFB03700 Thomas Brand 0898W50 Whatman 1821-037 Pall 66208	$63.73	16%
B 4.25cm diameter	100	B4250	Ahlstrom 1210-0425 Millipore APFB04200 Thomas Brand 0898W51 Whatman 1821-042	$71.24	24%
B 4.7cm diameter	100	B4700	Ahlstrom 1210-0470 Millipore APFB04700 Thomas Brand 0898W52 Whatman 1821-047 Pall 66209	$63.04	36%
B 5.5cm diameter	100	B5500	Ahlstrom 1210-0550 Millipore APFB05500 Whatman 1821-055	$96.96	22%
B 7.0cm diameter	100	B7000	Ahlstrom 1210-0700 Millipore APFB07000 Whatman 1821-070	$129.42	15%
B 9.0cm diameter	25	B9000-4	Whatman 1821-090	$41.63	9%
B 9.0cm diameter	50	B9000-2	Millipore APFB09050	$88.67	9%
B 9.0cm diameter	100	B9000	Ahlstrom 1210-0900	$166.12	9%
B 11.0cm diameter	25	B1100-4	Whatman 1821-110	$51.31	4%
B 11.0cm diameter	50	B1100-2	Millipore APFP11050	$118.92	9%
B 11.0cm diameter	100	B1100	Ahlstrom 1210-1100	$216.30	9%
B 12.5cm diameter	25	B1250-4	Whatman 1821-125	$65.84	9%
B 12.5cm diameter	50	B1250-2	Millipore APFB12450	$151.26	9%
B 12.5cm diameter	100	B1250	Ahlstrom 1210-1250	$282.04	9%
B 15.0cm diameter	25	B1500-4	Whatman 1821-150	$98.16	9%
B 15.0cm diameter	50	B1500-2	Millipore APFB15050	$233.67	9%
B 15.0cm diameter	100	B1500	Ahlstrom 1210-1500	$432.25	9%

Grade B - Fine porosity, medium to fast flow rate, with a 1.0µm size particle retention. Ideally suited for the collection of biochemical polymers that have been precipitated by denaturation. This material is twice as thick as Grade A with a higher loading capacity. May also be used as a solid particulate filter for gasses or as a prefilter. Binderless borosilicate glass microfiber.

Grade C

Specs	Filters/Pk	Catalog #	Comparable To	Our Price	You Save
C 2.1cm diameter	100	C2100	Ahlstrom 1310-0210 Millipore APFC02100 Whatman 1822-021	$48.97	24%
C 2.4cm diameter	100	C2400	Ahlstrom 1310-0240 Millipore APFC02400 Whatman 1822-022	$50.60	25%
C 2.5cm diameter	100	C2500	Ahlstrom 1310-0250 Millipore APFC02500 Whatman 1822-025 Pall 66213	$52.88	21%
C 3.5cm diameter	100	C3500		$55.55	25%
C 3.7cm diameter	100	C3700	Millipore APFC03700 Whatman 1822-037 Pall 66214	$55.55	28%
C 4.25cm diameter	100	C4250	Ahlstrom 1310-0425 Millipore APFC04200 Whatman 1822-042	$55.55	31%
C 4.7cm diameter	100	C4700	Ahlstrom 1310-0470 Millipore APFC04700 Whatman 1822-047 Pall 66215	$55.55	46%
C 5.5cm diameter	100	C5500	Ahlstrom 1310-0550 Millipore APFC05500 Whatman 1822-055	$64.99	46%
C 7.0cm diameter	100	C7000	Ahlstrom 1310-0700 Millipore APFC07000 Whatman 1822-070	$74.37	47%
C 9.0cm diameter	100	C9000	Ahlstrom 1310-0900 Whatman 1822-090	$82.66	55%
C 11cm diameter	100	C1100	Ahlstrom 1310-1100 Whatman 1822-110	$127.64	56%
C 12.5cm diameter	100	C1250	Ahlstrom 1310-1250 Whatman 1822-125	$165.39	47%
C 15.0cm diameter	100	C1500	Ahlstrom 1310-1500 Whatman 1822-150	$194.98	64%

Grade C - Fine porosity, fast flow rate, with a 1.2µm size particle retention. Primarily used for RIA procedures and harvesting lymphocytes. Binderless borosilicate glass microfiber.

Grade D

Specs	Filters/Pk	Catalog #	Comparable To	Our Price	You Save
D 2.1cm diameter	100	D2100	Ahlstrom 1410-0210 Millipore APFD02100 Whatman 1823-021	$31.76	17%
D 2.4cm diameter	100	D2400	Ahlstrom 1410-0240 Millipore APFD02400 Whatman 1823-024	$31.76	17%
D 2.5cm diameter	100	D2500	Ahlstrom 1410-0250 Millipore APFD02500 Whatman 1823-025 Pall 66220	$31.76	17%
D 3.5cm diameter	100	D3500		$34.34	17%
D 3.7cm diameter	100	D3700	Millipore APFD03700 Whatman 1823-037 Pall 66222	$34.34	20%
D 4.25cm diameter	100	D4250	Ahlstrom 1410-0425 Millipore APFD04200 Whatman 1823-042	$34.34	31%
D 4.7cm diameter	100	D4700	Ahlstrom 1410-0470 Millipore APFD04700 Whatman 1823-047 Pall 66224	$43.68	23%
D 5.5cm diameter	100	D5500	Ahlstrom 1410-0550 Millipore APFD05500 Whatman 1823-055	$56.47	14%
D 7.0cm diameter	100	D7000	Ahlstrom 1410-0700 Millipore APFD07000 Whatman 1823-070	$74.44	18%
D 9.0cm diameter	25	D9000-4	Whatman 1823-090	$34.71	9%
D 9.0cm diameter	100	D9000	Ahlstrom 1410-0900	$116.01	40%
D 11.0cm diameter	25	D1100-4	Whatman 1823-110	$51.54	24%
D 11.0cm diameter	100	D1100	Ahlstrom 1410-1100	$177.19	29%
D 12.5cm diameter	25	D1250-4	Whatman 1823-125	$60.03	9%
D 12.5cm diameter	100	D1250	Ahlstrom 1410-1250	$210.06	37%
D 15.0cm diameter	25	D1500-4	Whatman 1823-150	$103.97	9%
D 15.0cm diameter	100	D1500	Ahlstrom 1410-1500	$316.62	42%

Grade D - Coarse porosity, fast flow rate, with a 2.7µm size particle retention. Well suited for higher volume and repetitive laboratory filtering. Also ideally used as a general pre-filter to extend primary filter life. Binderless borosilicate glass microfiber.

Grade E

Specs	Filters/Pk	Catalog #	Comparable To	Our Price	You Save
E 2.1cm diameter	100	E2100	Ahlstrom 1610-0210	$20.48	46%
E 2.4cm diameter	100	E2400	Ahlstrom 1610-0240	$20.82	46%
E 2.5cm diameter	100	E2500	Ahlstrom 1610-0250	$20.82	46%
E 3.5cm diameter	100	E3500		$24.55	42%
E 3.7cm diameter	100	E3700		$25.22	43%
E 4.25cm diameter	100	E4250	Ahlstrom 1610-0425	$27.60	46%
E 4.7cm diameter	100	E4700	Ahlstrom 1610-0470	$29.62	46%
E 5.5cm diameter	100	E5500	Ahlstrom 1610-0550	$36.40	43%
E 7.0cm diameter	100	E7000	Ahlstrom 1610-0700	$44.51	43%
E 9.0cm diameter	100	E9000	Ahlstrom 1610-0900	$58.06	43%
E 11.0cm diameter	100	E1100	Ahlstrom 1610-1100	$77.00	43%
E 12.5cm diameter	100	E1250	Ahlstrom 1610-1250	$100.71	43%
E 15.0cm diameter	100	E1500	Ahlstrom 1610-1500	$126.96	43%
E 8x10 inch sheets	100	ES-810	Ahlstrom 1610-0810	$351.56	38%

Grade E - Fine porosity, fast flow rate, with a 1.3µm size particle retention. This material is an economical media for suspended particle analysis in water, cell harvesting, pre-filtration and air monitoring applications. Binderless borosilicate glass microfiber.

Grade F

Specs	Filters/Pk	Catalog #	Comparable To	Our Price	You Save
F 2.1cm diameter	100	F2100	Ahlstrom 1510-0210 Millipore APFF02100 Thomas Brand 1229A90 Whatman 1825-021	$52.04	52%
F 2.4cm diameter	100	F2400	Ahlstrom 1510-0240 Millipore APFF02400 Thomas Brand 1229A91 Whatman 1825-024	$52.04	54%
F 2.5cm diameter	100	F2500	Ahlstrom 1510-0250 Millipore APFF02500 Thomas Brand 1229A92 Whatman 1825-025	$52.04	51%
F 3.5cm diameter	100	F3500	Thomas Brand 1229A93	$52.04
F 3.7cm diameter	100	F3700	Millipore APFF03700 Thomas Brand 1229A94 Whatman 1825-037	$61.24	56%
F 4.25cm diameter	100	F4250	Ahlstrom 1510-0425 Millipore APFF04200 Thomas Brand 1229A95 Whatman 1825-042	$62.65	58%
F 4.7cm diameter	100	F4700	Ahlstrom 1510-0470 Millipore APFF04700 Thomas Brand 1229A96 Whatman 1825-047 Pall 66258	$71.38	52%
F 5.5cm diameter	100	F5500	Ahlstrom 1510-0550 Millipore APFF05500 Thomas Brand 1229A97 Whatman 1825-055	$84.28	56%
F 7.0cm diameter	100	F7000	Ahlstrom 1510-0700 Millipore APFF07000 Thomas Brand 1229A98 Whatman 1825-070	$98.57	56%
F 9.0cm diameter	25	F9000-4	Thomas Brand 1229B03 Whatman 1825-090	$28.93	63%
F 9.0cm diameter	50	F9000-2	Millipore APFF09050 Thomas Brand 1229B07 Whatman 1825-090 Pall 66256	$57.70	53%
F 9.0cm diameter	100	F9000	Ahlstrom 1510-0900 Thomas Brand 1229A99	$114.86	9%
F 11.0cm diameter	25	F1100-4	Thomas Brand 1229B04 Whatman 1825-110	$38.36	67%
F 11.0cm diameter	50	F1100-2	Millipore APFF11050 Thomas Brand 1229B08 Whatman 1825-110 Pall 66259	$76.87	9%
F 11.0cm diameter	100	F1100	Ahlstrom 1510-1100 Thomas Brand 1229B00	$153.74	9%
F 12.5cm diameter	25	F1250-4	Thomas Brand 1229B05 Whatman 1825-125	$63.97	54%
F 12.5cm diameter	50	F1250-2	Millipore APFF12450 Thomas Brand 1229B09 Whatman 1825-125	$99.54	9%
F 12.5cm diameter	100	F1250	Ahlstrom 1510-1250 Thomas Brand 1229B01	$198.36	9%
F 15.0cm diameter	25	F1500-4	Thomas Brand 1229B06 Whatman 1825-150	$112.86	46%
F 15.0cm diameter	100	F1500	Ahlstrom 1510-1500 Thomas Brand 1229B02	$341.15	9%

Grade F - Fine porosity, medium flow rate, with a 0.7µm size particle retention. Frequently used with Grade D to filter diluted aqueous solutions containing strong oxidizing, acidic, or alkaline components prior to laser spectroscopy. May also be used for TCLP analysis and collecting extremely fine precipitated proteins, including immunoglobulins. Binderless borosilicate glass microfiber.