NALGE NUNC INTERNATIONAL
Mfg Item # : 595-4520
Nalgene filters have the Rapid-Flow multi-column membrane-support system. This proprietary system provides a uniform, consistent separation between touchpoints with the membrane, minimizing gap stress to maintain optimal flow. Polystyrene housing 90mm Supor®* machV PES membrane 90-mm diameter membranes for faster flow rates. Filters securely screw onto glass media bottles with 33- or 45-mm neck sizes. Allow direct flitration of liquid into sterile glass media bottles*. BLUE collar. Side-arm with quick-disconnect tubing adapter. Nalgene PES: The best choice for cell culture Polyethersulfone (PES) is the ultimate tissue culture membrane. It’s fast and clean. PES is low protein binding, so there is less chance of removing critical protein from your media. It is hydrophilic, so no external wetting agents or surfactants are needed, resulting in low extractables. And it is fast, so you spend less time waiting. WARNING! All NALGENE Filterware is for research use only, not for in vitro diagnosis or parenterals. *CAUTION: Use only sterile bottles designed for use with vacuum. Always use safety shield during vacuum procedures.

GVS Filter Technology Part No. 1215544
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.

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.

Pall Laboratory
Mfg Item # : 60110
Supor* Membrane Disc Filter 0.8um pore size. 47mm diameter. Plain, nonsterile. Supor hydrophilic polyethersulfone membrane for high flow rate, low protein binding, low extractables. Stronger than acetate and nitrate membranes. Very high water flow, fluid filtration capacity. Autoclavable. 100/pk.
Exact Match: 28147-468

VWR International 28313-148
VWR* Grade 417 Filter Paper, Qualitative, Crepe 20.5cm diameter. Good for rapid filtrations where fine particle retention is not required. Coarse porosity. Fast flow rate. 40um particle retention.

VWR International 28313-160
VWR* Grade 417 Filter Paper, Qualitative, Crepe 25.0cm diameter. Good for rapid filtrations where fine particle retention is not required. Coarse porosity. Fast flow rate. 40um particle retention.

Cytiva - Whatman 1827-125 Glass Microfiber Filter Binder Free 125mm
Glass Microfiber Filter Binder Free, Type:circle, Dimensions: 125 mm, Grade: 934-AH, AirFlow rate: 3.7 s/100 ml/in2, Basis Weight: 64 g/m2, Filtration speed: Fast, Load Capacity : High loading, Particle retention: 1.5 um, Typical Thickness: 435 um Exact Match 28496-966

Advantec MFS Inc.
Mfg Item # : A020G047A
Sterile Mixed Cellulose Esters (MCE) Membrane Filters - White Available pore sizes: 0.20µm, 0.45µm, 0.65µm, 0.80µm, 1.0µm, 3.0µm Color: White Surface: Gridded or Plain, and with or without Hydrophobic Edge (HE) Packaging: Individually wrapped or multipack, and with or without absorbent pad. Pleated band for dispensers available. Mixed Cellulose Esters (MCE) membrane is a general purpose filter used in many applications for the microbiological examination of water, wastewater, pharmaceuticals, food, and beverages and air monitoring. MCE membranes offer high recovery rates and superior flow rates. Advantec MCE membranes are high purity and Triton-free. Contrasting grid lines facilitate counting colonies and are tested to assure freedom from grid line inhibition. 3.1mm squares represent 1/100 of the filtration area of a 47mm diameter filter (9.6cm 2 ). Membranes are sterilized by ethylene oxide (EtO) gas and are available individually wrapped or in 10-pack envelopes. Membrane specifications and lot number are printed on clear cover of each filter. Advantec's continuous pleated band packaging is compatible with various membrane dispensers. Advantec membranes were developed and are manufactured to comply with the ASTM and the Standard Methods for the Examination of Water and Wastewater. Quality control tests are performed on each lot and QA Certificates are available. Please Note: ALL Advantec items have a maximum 48 hour cancellation window. Any cancellations AFTER the 48 hour window will incur a restocking fee equal to the cost of the product.

Advantec MFS Inc.
Mfg Item # : GA55110MM
Advantec Glass Fiber Depth Filters feature high-loading capacity, fast flow rates, are highly resistant to chemical attack, and biologically inert. General purpose and clarifying filtration grades. Binder-free and thermostable to 500°C. Grade GA55 is a thin filter recommended for clarifying filtration and air pollution monitoring. Nominal Rating 0.6µm Grade GF75 collects very fine particles and has a high collection efficiency at 99.999%(DOP) and slower flow. Ideal for collecting IgG or other very fine protein precipitates. Use for TCLP EPA 1311. Nominal Rating 0.3µm(0.7µm) Grade GB140 is a thick filter with a high loading capacity. Used in industrial waste analysis and for suspended solids. Nominal Rating 0.4µm Grade GC50 is a thin filter recommended as a prefilter for membrane or suspended solids and pollutants in water. Low absorption makes this an ideal filter for scintillation counting. High Collection Efficiency(DOP) of 99.99%. Nominal Rating 0.5µm Grade GD120 has high wet strength and high-loading capacity. Ideal as prefilter for membrane <1.2µm. Nominal Rating 0.9µm Please Note: ALL Advantec items have a maximum 48 hour cancellation window. Any cancellations AFTER the 48 hour window will incur a restocking fee equal to the cost of the product.

Advantec MFS Inc.
Mfg Item # : GA5525MM
Advantec Glass Fiber Depth Filters feature high-loading capacity, fast flow rates, are highly resistant to chemical attack, and biologically inert. General purpose and clarifying filtration grades. Binder-free and thermostable to 500°C. Grade GA55 is a thin filter recommended for clarifying filtration and air pollution monitoring. Nominal Rating 0.6µm Grade GF75 collects very fine particles and has a high collection efficiency at 99.999%(DOP) and slower flow. Ideal for collecting IgG or other very fine protein precipitates. Use for TCLP EPA 1311. Nominal Rating 0.3µm(0.7µm) Grade GB140 is a thick filter with a high loading capacity. Used in industrial waste analysis and for suspended solids. Nominal Rating 0.4µm Grade GC50 is a thin filter recommended as a prefilter for membrane or suspended solids and pollutants in water. Low absorption makes this an ideal filter for scintillation counting. High Collection Efficiency(DOP) of 99.99%. Nominal Rating 0.5µm Grade GD120 has high wet strength and high-loading capacity. Ideal as prefilter for membrane <1.2µm. Nominal Rating 0.9µm Please Note: ALL Advantec items have a maximum 48 hour cancellation window. Any cancellations AFTER the 48 hour window will incur a restocking fee equal to the cost of the product.