Pall Laboratory
Mfg Item # : 66601
Nylaflo* Membrane Disc Filter 0.2um pore. 25mm diameter. Hydrophilic nylon filter compatible with esters, bases, alcohols. Not for acids1N or halogenated solvents. Naturally wettable to aqueous solutions. HPLC certified for low levels of UV-absorbing extractables. 100/pk.
Exact Match: 28140-028

Cytiva - Whatman 1001-270 Grade 1 Filter Paper
27.0cm diameter. For a wide range of laboratory applications, liquid clarification, gas filtration, air pollution analysis, and soil analysis. Medium porosity. Medium flow rate. 11um particle retention. Exact Match 28450-207

Cytiva - Whatman 1002-070 Grade 2 Filter Paper
7.0cm diameter. More retentive, slower, and more absorbent than Grade 1 Filter Paper by Whatman*. For general-purpose lab applications, monitoring specific contaminants in the atmosphere, and soil testing. Medium porosity. Medium flow rate. 8um particle retention. Exact Match 28455-063

Cytiva - Whatman 10414112 Polyamide Membrane 47mm
Polyamide Membrane, Type: Circle (NL17), pore size: 0.45 um,Diameter: 47mm, Water Flowrate: 20 ml/min/cm2, Maximum Operating Temperature: 135 deg C, suitable for aqueous and organic solutions, mechanically very strong and exhibit excellent wet strength and dry strength Exact Match 28152-899

Cytiva - Whatman 7404-004 Nylon Membrane Filter, Type WNYL
0.45um pore size. 47mm diameter. For biotech and chromatography applications. Intrinsically hydrophilic, eliminating the need for wetting agents. Capable of filtering most organic solvents. Autoclavable. Exact Match 28159-746

Cytiva - Whatman 1440-125 Quantitative Filter Paper 125mm
Quantitative Filter Paper, Grade: 40, Type: circle, Diameter: 125 mm, AirFlow rate: 19.3 s/100 mL/in2, Basis Weight: 95 g/m2, Burst Strength: 0.034 bar wet burst Exact Match 28475-081

Ahlstrom 8613 has a smooth black finish designed for use in applications requiring visual examination of particles.•Low ash content 0.06% •Untreated •Consistent performance

GVS Filter Technology Part No. 1215540
Extend the life of final filters Pore sizes from 0.5 µm to 1.0 µm With or without binders Autoclavable PreSep prefilters are biologically inert and highly resistant to oxidizing agents and weak acids. Primarily used to extend the life of a final filter, they can also be used as a low-cost sample clarifier. Prefilters increase the speed of filtration by trapping large particles before they reach the final membrane filter. Frequency and cost of replacing the final membrane filters is reduced. Filters with binders are composed of borosilicate glass fibers woven into a porous matrix and bonded by an acrylic resin. The resulting filter reduces media migration and has the strength required for high-volume aqueous filtrations. Maximum operating temperature is 165°C (325°F). Glass prefilters without binders are designed to avoid binder extractables during solvent filtration or gravimetric analysis. Not recommended for temperatures exceeding 510°C (950°F). For upstream protection of a membrane within a filter holder, the use of a prefilter that is slightly smaller in diameter than the main filter allows the prefilter to fit inside the O-ring or filter funnel holder seal, ensuring a positive membrane seal. When used as the main filter medium, select a diameter of the same size as the filter holder to be used. Type G15 Glass Fiber Prefilters with Binders (4749A02 to A14) Nominal pore size- 0.5 µm High rentention efficiency Limited dirt-handling capacity Protection of 0.2 µm to 0.8 µm final filters Type G20 Glass Fiber Prefilters with Binders (4749A20 to A32) Nominal pore size- 1.0 µm Surface capture of particles Average retention efficiency Higher dirt-handling capacity Protection of 0.8 µm and larger pore size final filters Type G25 Glass Fiber Prefilters with Binders (4749A40 to A54) Nominal pore size- 1.0 µm Thickness approximately 3.5 times greater than G20 Depth particle capture Average retention efficiency Highest dirt-handling capacity Recommended for solutions with heavy contaminate loads Protection of 0.8 µm and larger pore size final filters Type G40 Glass Fiber Prefilters WITHOUT Binders (4638D60 to D68) Nominal pore size- 1.0 µm Average retention efficiency Highest dirt-handling capacity Recommended for solvent filtration, gravimetric analysis, contamination analysis of wastewater and industrial effluents TCLP Glass Fiber Filters WITHOUT Binders, 0.7 µm Pore Size (4749A72) Borosilicate glass fiber filters designed for use in U.S. EPA Method 1311 Toxicity Characteristic Leaching Procedure (TCLP). Federal regulations require the filters for this application be made of borosilicate glass fiber, contain no binder materials and have an effective pore size of 0.6 to 0.8 microns. GE TCLP glass fiber filters have a pore size of 0.7 microns and are binder free. They are used in Zero-Headspace Extractor Vessels for determining the mobility of semi-volatiles. Filters should be acid washed prior to use with 1N nitric acid followed by three consecutive rinses with deionized water. A minimum of 1 liter per rinse is recommended.

Cytiva - Whatman 111137 Nuclepore* Polycarbonate AOX Track-Etched Membranes, Circles, 12.0 uM, 47 mm 100/pk
Manufactured from high-quality polycarbonate film and have sharply defined pore sizes, high flow rates, and excellent chemical and thermal resistance. Exact Match 10034-592

Cytiva - Whatman 6809-2102 Anotop* 25 Disposable Syringe Filter
0.02um pore size. 25mm diameter. Sterile. Anopore* aluminum oxide membrane with honeycomb pore structure. Compatible with most solvents and aqueous materials. Molded polypropylene housing. Luer lock fittings. For samples up to 100mL. 150uL hold up volume. Exact Match 28138-025