Suction Filters

Filter funnels are suited for separating suspensions by diffusion through a porous surface. It is important to differentiate between the classic filter funnels and buechner funnels.

Volume (filter funnels): 50 ml, 75 ml, 125 ml, 500 ml, 1000 ml, 4000 ml, etc.
Diameter (Buechner): 45 mm, 50 mm, 125 mm, 150 mm, 240 mm, 320 mm, etc.

Analytics-Shop offers all filter funnels and buechner funnels manufactured by Duran and IDL GmbH, which are characterised by the excellent properties of the materials used.

Please click here for more Information on filter funnels.

Filter Results

Filter funnel/DURAN, 4000 ml, por. 4

Item number: DU258526404

Brand: Duran Group

In stock

$1,951.71

DURAN® Micro filter funnel, 12D, 2 ml, porosity 4, 10 pc/PAK

Item number: DU258575404

Brand: Duran Group

$1,176.90

DURAN® Micro filter funnel, 12D, 2 ml, porosity 3, 10 pc/PAK

Item number: DU258575301

Brand: Duran Group

$1,103.10

DURAN® Micro filter funnel, 12D, 2 ml, porosity 2, 10 pc/PAK

Item number: DU258575207

Brand: Duran Group

$1,103.10

DURAN® Micro filter funnel, 12D, 2 ml, porosity 1, 10 pc/PAK

Item number: DU258575104

Brand: Duran Group

$1,103.10

Filter funnel/DURAN, 4000 ml, por. 3

Item number: DU258526301

Brand: Duran Group

$1,672.32

Filter funnel/DURAN, 4000 ml, por. 2

Item number: DU258526207

Brand: Duran Group

$1,712.28

Filter funnel/DURAN, 4000 ml, por. 1

Item number: DU258526104

Brand: Duran Group

$1,712.28

Filter funnel/DURAN, 1000 ml, por. 5

Item number: DU258524506

Brand: Duran Group

$1,372.98

Filter funnel/DURAN, 1000 ml, por. 4

Item number: DU258524403

Brand: Duran Group

$674.52

Filter funnel/DURAN, 1000 ml, por. 3

Item number: DU258524309

Brand: Duran Group

$514.89

Filter funnel/DURAN, 1000 ml, por. 2

Item number: DU258524206

Brand: Duran Group

$514.89

Filter funnel/DURAN, 1000 ml, por. 1

Item number: DU258524103

Brand: Duran Group

$514.89

Filter funnel/DURAN, 500 ml, por. 5

Item number: DU258523501

Brand: Duran Group

$797.94

Filter funnel/DURAN, 500 ml, por. 4

Item number: DU258523407

Brand: Duran Group

$379.11

Filter funnel/DURAN, 500 ml, por. 3

Item number: DU258523304

Brand: Duran Group

$317.28

Filter funnel/DURAN, 500 ml, por. 2

Item number: DU258523201

Brand: Duran Group

$317.28

Filter funnel/DURAN, 500 ml, por. 1

Item number: DU258523107

Brand: Duran Group

$158.64

Filter funnel/DURAN, 125 ml, por. 5

Item number: DU258522505

Brand: Duran Group

$385.14

Filter funnel/DURAN, 125 ml, por. 4

Item number: DU258522402

Brand: Duran Group

$215.49

Filter funnel/DURAN, 125 ml, por. 3

Item number: DU258522308

Brand: Duran Group

$189.54

Filter funnel/DURAN, 125 ml, por. 2

Item number: DU258522205

Brand: Duran Group

$195.57

Filter funnel/DURAN, 125 ml, por. 1

Item number: DU258522102

Brand: Duran Group

$97.79

Filter funnel/DURAN, 75 ml, por. 5

Item number: DU258521509

Brand: Duran Group

$257.37

Filter funnel/DURAN, 75 ml, por. 4

Item number: DU258521406

Brand: Duran Group

$157.68

Filter funnel/DURAN, 75 ml, por. 3

Item number: DU258521303

Brand: Duran Group

$143.61

Filter funnel/DURAN, 75 ml, por. 2

Item number: DU258521209

Brand: Duran Group

$143.61

Filter funnel/DURAN, 75 ml, por. 1

Item number: DU258521106

Brand: Duran Group

$143.61

Filter funnel/DURAN, 50 ml, por. 5

Item number: DU258520504

Brand: Duran Group

$233.40

Filter funnel/DURAN, 50 ml, por. 4

Item number: DU258520401

Brand: Duran Group

$135.84

Filter funnel/DURAN, 50 ml, por. 3

Item number: DU258520307

Brand: Duran Group

$127.68

Filter funnel/DURAN, 50 ml, por. 2

Item number: DU258520204

Brand: Duran Group

$127.68

Filter funnel/DURAN, 50 ml, por. 1

Item number: DU258520101

Brand: Duran Group

$63.84

Duran - Filter Funnels

The glass filters are classified as being in porosity classes 0 to 5 according to their nominal maximum pore size. The following table shows the corresponding porosity range. The specified pore sizes always relate to the largest pore in the plate. This specification also characterises the minimum nominal size of particles which may be retained by the filtration.

Porosity	ISO 4793 Labeling	max. Pore Size [µm]
0	P 250	160 - 250
1	P 160	100 - 160
2	P 100	40 - 100
3	P 40	16 - 40
4	P 16	10 - 16
5	P 1.6	1.0 - 1.6

ll filter funnels of DURAN are manufactured out of borosilicate glass, which is charaterized by high resistance against chemicals and changes is temperature. Filter funnels are linked by a cubic ruber gasket (GUKO). The following tabelle gives you an overview of the product range of DURANs filter funnels.

Porosity	Volumen [ml]	d Plate [mm]	d Output [mm]	d Input [mm]	Heigth [mm]
1 - 5	50	35	10	40	130
1 - 5	75	45	10	56	130
1 - 5	125	60	10	71	140
1 - 5	500	95	22	106	200
1 - 5	1 000	120	22	135	320
1 - 5	4 000	175	30	202	400

IDL GmbH - Buechner Funnels

Buechner funnels are filter funnels with a worked into sieve instead of a porous filteration layer. The filter papers required for separations with buechner funnels can also be found at the analytics-shop.com. The following tabelle gives you an overview of the products of IDL GmbH.