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We have developed a unique portfolio of consumables, each adapted to the different feed water quality requirements and to your various applications. To maintain your water system’s performance, it’s critical to replace your purification cartridges on time and with genuine ISO 9001-certified parts.

Catalog No. Product Net Price
PP4502500 Polypropylene Net Filter 100 
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  • Background Information
  • Millipore polypropylene filters are constructed of 100% virgin polypropylene media. They are ideally suited for general clarifying and prefiltration applications including solvents, deionized water and bioburden reduction. They also provide broad thermal compatibility.The prefilters provide high particle retention, high dirt holding capacity and low pressure drop. They are designed for filtration of organic solvents, but they can also be used - once properly wetted with alcohol - for the filtration of aqueous solutions.Features & Benefits:•Compatible with aggressive solvents •Prefilters have high dirt-holding capacity Applications:General Prefiltration and Clarification, Suitable for Organic Solvents
  • Catalogue Number
  • PP4502500
  • Chemistry
  • Polypropylene (PP)
  • Filter Code
  • PP45
  • Filter Color
  • White
  • Filter Diameter (⌀)
  • 25 mm
  • Filter Surface
  • Plain
  • Filter Type
  • Net filter
  • Material Size
  • 100
  • Maximum Operating Temperature
  • 100 °C
  • Pore Size
  • 45.0 µm
  • Thickness
  • 430 µm
  • Wettability
  • Hydrophilic
PP4502500 Polypropylene Net Filter 100 
Add to Cart
  • Background Information
  • Millipore polypropylene filters are constructed of 100% virgin polypropylene media. They are ideally suited for general clarifying and prefiltration applications including solvents, deionized water and bioburden reduction. They also provide broad thermal compatibility.The prefilters provide high particle retention, high dirt holding capacity and low pressure drop. They are designed for filtration of organic solvents, but they can also be used - once properly wetted with alcohol - for the filtration of aqueous solutions.Features & Benefits:•Compatible with aggressive solvents •Prefilters have high dirt-holding capacity Applications:General Prefiltration and Clarification, Suitable for Organic Solvents
  • Catalogue Number
  • PP4502500
  • Chemistry
  • Polypropylene (PP)
  • Filter Code
  • PP45
  • Filter Color
  • White
  • Filter Diameter (⌀)
  • 25 mm
  • Filter Surface
  • Plain
  • Filter Type
  • Net filter
  • Material Size
  • 100
  • Maximum Operating Temperature
  • 100 °C
  • Pore Size
  • 45.0 µm
  • Thickness
  • 430 µm
  • Wettability
  • Hydrophilic
PP4504700 Polypropylene Net Filter 131 
Add to Cart
  • Background Information
  • Millipore polypropylene filters are constructed of 100% virgin polypropylene media. They are ideally suited for general clarifying and prefiltration applications including solvents, deionized water and bioburden reduction. They also provide broad thermal compatibility.The prefilters provide high particle retention, high dirt holding capacity and low pressure drop. They are designed for filtration of organic solvents, but they can also be used - once properly wetted with alcohol - for the filtration of aqueous solutions.Features & Benefits:•Compatible with aggressive solvents •Prefilters have high dirt-holding capacity Applications:General Prefiltration and Clarification, Suitable for Organic Solvents
  • Catalogue Number
  • PP4504700
  • Chemistry
  • Polypropylene (PP)
  • Filter Code
  • PP45
  • Filter Color
  • White
  • Filter Diameter (⌀)
  • 47 mm
  • Filter Surface
  • Plain
  • Filter Type
  • Net filter
  • Material Size
  • 100
  • Maximum Operating Temperature
  • 100 °C
  • Pore Size
  • 45.0 µm
  • Thickness
  • 430 µm
  • Wettability
  • Hydrophilic
PP4504700 Polypropylene Net Filter 131 
Add to Cart
  • Background Information
  • Millipore polypropylene filters are constructed of 100% virgin polypropylene media. They are ideally suited for general clarifying and prefiltration applications including solvents, deionized water and bioburden reduction. They also provide broad thermal compatibility.The prefilters provide high particle retention, high dirt holding capacity and low pressure drop. They are designed for filtration of organic solvents, but they can also be used - once properly wetted with alcohol - for the filtration of aqueous solutions.Features & Benefits:•Compatible with aggressive solvents •Prefilters have high dirt-holding capacity Applications:General Prefiltration and Clarification, Suitable for Organic Solvents
  • Catalogue Number
  • PP4504700
  • Chemistry
  • Polypropylene (PP)
  • Filter Code
  • PP45
  • Filter Color
  • White
  • Filter Diameter (⌀)
  • 47 mm
  • Filter Surface
  • Plain
  • Filter Type
  • Net filter
  • Material Size
  • 100
  • Maximum Operating Temperature
  • 100 °C
  • Pore Size
  • 45.0 µm
  • Thickness
  • 430 µm
  • Wettability
  • Hydrophilic
XX2004708 Millipore Stainless Steel Support Screen for Vacuum Filtration 152 
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  • Background Information
  • Millipore Glass Vacuum Filtration Accessory ProductStainless Steel Support Screen, 47 mmThese accessory products are designed to replace parts contained in Millipore glass vacuum filtration kits or provide for an alternative configuration. This item is an accessory part for the Millipore 47 mm Classic Glass Filter Holder Kits and Millipore 47 mm All-Glass Filter Holder Kits.
  • Catalogue Number
  • XX2004708
  • Diameter
  • 47 mm
  • Material Size
  • 1
  • Materials of Construction
  • Stainless steel screen
XX2004708 Millipore Stainless Steel Support Screen for Vacuum Filtration 152 
Add to Cart
  • Background Information
  • Millipore Glass Vacuum Filtration Accessory ProductStainless Steel Support Screen, 47 mmThese accessory products are designed to replace parts contained in Millipore glass vacuum filtration kits or provide for an alternative configuration. This item is an accessory part for the Millipore 47 mm Classic Glass Filter Holder Kits and Millipore 47 mm All-Glass Filter Holder Kits.
  • Catalogue Number
  • XX2004708
  • Diameter
  • 47 mm
  • Material Size
  • 1
  • Materials of Construction
  • Stainless steel screen
AQFA04700 Quartz Fiber Membrane Filter without binder 134 
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  • Background Information
  • OverviewMillipore fibrous disc filters are available in a wide range of flow rates and throughput capacities. Quartz Fiber Filters (Type AQFA)Made of quartz fibers with no glass fibers or binders. Millipore's pure quartz manufacturing process involves a heat treatment step to improve the composition and prevent the filters from reacting with acidic gases, unlike glass fiber filters that can react and cause false readings. This makes quartz filters well suited for measuring heavy metal concentrations and small amounts of particles (such as the US EPA PM 10 ambient air monitoring method). The quartz filters also exhibit good weight and form stability.
  • Catalogue Number
  • AQFA04700
  • Chemistry
  • Quartz Fiber
  • Filter Code
  • AQFA
  • Filter Color
  • White
  • Filter Diameter (⌀)
  • 47 mm
  • Filter Surface
  • Plain
  • Filter Type
  • Depth filter
  • Flow Rate
  • 1.6 mL/min x cm²
  • Material Size
  • 100 pack, AQFA, 47 mm
  • Maximum Operating Temperature
  • 950 °C
  • Pore Size
  • Not Applicable
  • Thickness
  • 430 µm
  • Wettability
  • Hydrophilic
AQFA04700 Quartz Fiber Membrane Filter without binder 134 
Add to Cart
  • Background Information
  • OverviewMillipore fibrous disc filters are available in a wide range of flow rates and throughput capacities. Quartz Fiber Filters (Type AQFA)Made of quartz fibers with no glass fibers or binders. Millipore's pure quartz manufacturing process involves a heat treatment step to improve the composition and prevent the filters from reacting with acidic gases, unlike glass fiber filters that can react and cause false readings. This makes quartz filters well suited for measuring heavy metal concentrations and small amounts of particles (such as the US EPA PM 10 ambient air monitoring method). The quartz filters also exhibit good weight and form stability.
  • Catalogue Number
  • AQFA04700
  • Chemistry
  • Quartz Fiber
  • Filter Code
  • AQFA
  • Filter Color
  • White
  • Filter Diameter (⌀)
  • 47 mm
  • Filter Surface
  • Plain
  • Filter Type
  • Depth filter
  • Flow Rate
  • 1.6 mL/min x cm²
  • Material Size
  • 100 pack, AQFA, 47 mm
  • Maximum Operating Temperature
  • 950 °C
  • Pore Size
  • Not Applicable
  • Thickness
  • 430 µm
  • Wettability
  • Hydrophilic
AAWP0470M MF-Millipore™ Membrane Filter, 0.8 µm pore size 492 
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  • Air Flow Rate
  • 16 L/min x cm²
  • Background Information
  • Biologically inert mixtures of cellulose acetate and cellulose nitrate have made MF-Millipore™ membrane filters one of the most widely used membranes in analytical and research applications. MF-Millipore™ filters without Triton® surfactant contain minimum amounts of wetting agent and have a lower water extractable content than standard MF-Millipore™ filters.Features & Benefits: - Versatile filter for biological and environmental monitoring applications - Available in a range of pore sizes, colored black or white, with or without a gridded surface - Compatible with ethylene oxide, gamma irradiation, and autoclave sterilization methods
  • Catalogue Number
  • AAWP0470M
  • Chemistry
  • Mixed Cellulose Esters (MCE)
  • Filter Code
  • AAWP
  • Filter Color
  • White
  • Filter Diameter (⌀)
  • 47 mm
  • Filter Surface
  • Plain
  • Flow Rate
  • 16 L/min x cm²
  • Material Size
  • 50 pr
  • Maximum Operating Temperature
  • 75 °C
  • Media
  • MF-Millipore
  • Pore Size
  • Background Information
  • Porosity %
  • 82%
  • Thickness
  • 150 µm
  • Trade Name
  • MF-Millipore
  • Wettability
  • Hydrophilic
AAWP0470M MF-Millipore™ Membrane Filter, 0.8 µm pore size 492 
Add to Cart
  • Air Flow Rate
  • 16 L/min x cm²
  • Background Information
  • Biologically inert mixtures of cellulose acetate and cellulose nitrate have made MF-Millipore™ membrane filters one of the most widely used membranes in analytical and research applications. MF-Millipore™ filters without Triton® surfactant contain minimum amounts of wetting agent and have a lower water extractable content than standard MF-Millipore™ filters.Features & Benefits: - Versatile filter for biological and environmental monitoring applications - Available in a range of pore sizes, colored black or white, with or without a gridded surface - Compatible with ethylene oxide, gamma irradiation, and autoclave sterilization methods
  • Catalogue Number
  • AAWP0470M
  • Chemistry
  • Mixed Cellulose Esters (MCE)
  • Filter Code
  • AAWP
  • Filter Color
  • White
  • Filter Diameter (⌀)
  • 47 mm
  • Filter Surface
  • Plain
  • Flow Rate
  • 16 L/min x cm²
  • Material Size
  • 50 pr
  • Maximum Operating Temperature
  • 75 °C
  • Media
  • MF-Millipore
  • Pore Size
  • Background Information
  • Porosity %
  • 82%
  • Thickness
  • 150 µm
  • Trade Name
  • MF-Millipore
  • Wettability
  • Hydrophilic

Overview

Analytical Sample Preparation Membrane Filtration Devices


Trust Merck membrane filtration devices for the collection and preparation of samples, mobile phases, and buffers to obtain the highest quality results from downstream analysis.


Whether you need to collect, separate, or remove contaminants from air or fluid samples prior to downstream analysis, our broad selection of syringe filters, membranes, filter holders and related filtration devices ensures that we have the right solution for your application.


Filter Membranes

Millex® Syringe Filters

Filtration Holders & Accessories



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