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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
OR46.04X3.53 O-RING46.04 X 3.53, FLUOROELASTOME Special offer 
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  • Catalogue Number
  • OR46.04X3.53
  • Material Size
  • 1
OR71.44X3.53 O-RING 71.44 X 3.53, FLUOROELASTOMER-VUL Special offer 
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  • Catalogue Number
  • OR71.44X3.53
  • Material Size
  • 1
ORE22.0X3.0 O-Ring 22,0 x 3,0 EPDM Special offer 
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  • Catalogue Number
  • ORE22.0X3.0
  • Material Size
  • 1
OTS21.95X1.78 O-RING TEFLEX 21.95 X 1.78, SILICONE Special offer 
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  • Catalogue Number
  • OTS21.95X1.78
  • Material Size
  • 1
OTS88.49X3.53 O-RING TEFLEX 88.49x3.53, SILICONE, FDA Special offer 
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  • Catalogue Number
  • OTS88.49X3.53
  • Material Size
  • 1
RW0329325 Reinforced Membrane, mixed cellulose esters, 0.2 µm, polyester web 293 mm Special offer 
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  • Catalogue Number
  • RW0329325
  • Chemistry
  • Mixed Cellulose Esters (MCE)Polyester Web
  • Filter Code
  • RW03
  • Filter Color
  • White
  • Filter Diameter (⌀)
  • 293 mm
  • Filter Surface
  • Plain
  • Filter Type
  • Screen filter
  • Flow Rate
  • 23 mL/min x cm²
  • Material Size
  • 25
  • Pore Size
  • 0.2 µm
  • Porosity %
  • 75%
  • Thickness
  • 140 µm
  • Wettability
  • Hydrophilic
XX1104705 Sterifil receiver flask, 250 mL Special offer 
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  • Applicable Device
  • Sterifil Aseptic System
  • Background Information
  • The Sterifil® aseptic system was designed as a tool for general filtration applications and filtration of samples for particulate or biological contamination analysis. The closed unit protects sample and filtrate from environmental contamination. Sterifil® holder and funnel are available separately (without receiver flask and cover) to use with standard 1 L filter flasks or multiple place manifolds. Depending upon membrane filter selection, the Sterifil® products can be used for a variety of applications including bioburden monitoring and enumeration of organisms in samples. Features & Benefits:•Closed unit protects samples and filtrate from environmental contamination •Device is autoclavable with membrane in place for sterile applications with less waste •Optional hand pump allows for on-site filtration Applications:General Filtration, Field-based Filtration (with optional hand pump), Bioburden Monitoring, Counting Microorganisms, Filtration Processes Requiring Membrane to be Retained
  • Catalogue Number
  • XX1104705
  • Device Material
  • Polysulfone
  • Diameter
  • 47 mm
  • Material Size
  • 1
  • Materials of Construction
  • Polysulfone receiver flask
  • Sterility
  • Sterile
  • Trade Name
  • Sterifil
  • Volume
  • 250 mL
XX1104705 Sterifil receiver flask, 250 mL Special offer 
Add to Cart
  • Applicable Device
  • Sterifil Aseptic System
  • Background Information
  • The Sterifil® aseptic system was designed as a tool for general filtration applications and filtration of samples for particulate or biological contamination analysis. The closed unit protects sample and filtrate from environmental contamination. Sterifil® holder and funnel are available separately (without receiver flask and cover) to use with standard 1 L filter flasks or multiple place manifolds. Depending upon membrane filter selection, the Sterifil® products can be used for a variety of applications including bioburden monitoring and enumeration of organisms in samples. Features & Benefits:•Closed unit protects samples and filtrate from environmental contamination •Device is autoclavable with membrane in place for sterile applications with less waste •Optional hand pump allows for on-site filtration Applications:General Filtration, Field-based Filtration (with optional hand pump), Bioburden Monitoring, Counting Microorganisms, Filtration Processes Requiring Membrane to be Retained
  • Catalogue Number
  • XX1104705
  • Device Material
  • Polysulfone
  • Diameter
  • 47 mm
  • Material Size
  • 1
  • Materials of Construction
  • Polysulfone receiver flask
  • Sterility
  • Sterile
  • Trade Name
  • Sterifil
  • Volume
  • 250 mL
XX1104710 Sterifil holder, 250 mL, includes components (1) to (9) Special offer 
Add to Cart
  • Applicable Device
  • Sterifil Aseptic System
  • Background Information
  • The Sterifil® aseptic system was designed as a tool for general filtration applications and filtration of samples for particulate or biological contamination analysis. The closed unit protects sample and filtrate from environmental contamination. Sterifil® holder and funnel are available separately (without receiver flask and cover) to use with standard 1 L filter flasks or multiple place manifolds. Depending upon membrane filter selection, the Sterifil® products can be used for a variety of applications including bioburden monitoring and enumeration of organisms in samples. Features & Benefits:•Closed unit protects samples and filtrate from environmental contamination •Device is autoclavable with membrane in place for sterile applications with less waste •Optional hand pump allows for on-site filtration Applications:General Filtration, Field-based Filtration (with optional hand pump), Bioburden Monitoring, Counting Microorganisms, Filtration Processes Requiring Membrane to be Retained
  • Catalogue Number
  • XX1104710
  • Diameter
  • 7.6 cm
  • Filter Diameter (⌀)
  • 47 mm
  • Filtration Area
  • 13.8 cm²
  • Fitting Inlet
  • Funnel
  • Fitting Outlet
  • Holder outlet stopper fits standard 1 L filtering flask
  • Height
  • 20.3 cm (8 in.)
  • Material Size
  • 1
  • Materials of Construction
  • Polysulfone funnel, funnel cover, receiver flask and cover; polypropylene holder base, and filter support screen; silicone stopper
  • Seal Material
  • Silicone (SI)
  • Trade Name
  • Sterifil
XX1104710 Sterifil holder, 250 mL, includes components (1) to (9) Special offer 
Add to Cart
  • Applicable Device
  • Sterifil Aseptic System
  • Background Information
  • The Sterifil® aseptic system was designed as a tool for general filtration applications and filtration of samples for particulate or biological contamination analysis. The closed unit protects sample and filtrate from environmental contamination. Sterifil® holder and funnel are available separately (without receiver flask and cover) to use with standard 1 L filter flasks or multiple place manifolds. Depending upon membrane filter selection, the Sterifil® products can be used for a variety of applications including bioburden monitoring and enumeration of organisms in samples. Features & Benefits:•Closed unit protects samples and filtrate from environmental contamination •Device is autoclavable with membrane in place for sterile applications with less waste •Optional hand pump allows for on-site filtration Applications:General Filtration, Field-based Filtration (with optional hand pump), Bioburden Monitoring, Counting Microorganisms, Filtration Processes Requiring Membrane to be Retained
  • Catalogue Number
  • XX1104710
  • Diameter
  • 7.6 cm
  • Filter Diameter (⌀)
  • 47 mm
  • Filtration Area
  • 13.8 cm²
  • Fitting Inlet
  • Funnel
  • Fitting Outlet
  • Holder outlet stopper fits standard 1 L filtering flask
  • Height
  • 20.3 cm (8 in.)
  • Material Size
  • 1
  • Materials of Construction
  • Polysulfone funnel, funnel cover, receiver flask and cover; polypropylene holder base, and filter support screen; silicone stopper
  • Seal Material
  • Silicone (SI)
  • Trade Name
  • Sterifil

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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