Membrane Caps

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Membrane Caps
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  • PTFE Membrane


    Modular “building block” type gas-liquid separator made from chemically-resistant plastic. An exchangeable PTFE membrane in the screw cap of the separator prevents liquid from being carried into the quartz cell when working with strong foaming samples.

  • Dissolved Oxygen Field Probes With Cap Membranes


    …DO and temperature sensors Weighted and waterproof; sinks easily Uses cap membranes for easy replacement. Cable is connected directly to probe body. Compatible with Model 52, 7230D50 and Model 58, 7230R25. Includes six cap membranes and KCl solution. For replacement membranes, see 7230R78.

  • Whatman Mini-UniPrep G2 Multi-Compressor Tray

    GE Healthcare

    …plunger and attached filter membrane, and septum with cap A multicompressor streamlines syringeless filtration – preload in advance with an extra trayDesigned for GE’s Mini-UniPrep G2, which combines a borosilicate glass vial, plunger and attached filter membrane, and septum with capA Mini UniPrep…

  • Membrane Cap, Blue Polypropylene

    Bellco Glass

    PTFE sealed-in gas permeable membrane. Reduces risk of excess internal pressure. Can be tightened during autoclaving.

  • Whatman™ Mini-Uniprep™ Syringeless Filters

    GE Healthcare

    …autosampler vials with a single, disposable unit Available in seven different membrane materials Each Mini-UniPrep consists of two parts: a chamber and a plunger. The design incorporates a filtration membrane on one end of the plunger and a pre-attached cap/septum on the other. By…

  • 33mm Polyethylene Universal Cap with Vented Overcap


    Designed to fit pre-existing filling systems for other product brands 33mm polyethylene threaded cap Vented overcap has 0.2µm PTFE membrane sealed into the peelable foil cover Sterilized by gamma irradiation Double bagged

  • 33 mm Polyethylene Filling Caps


    …threaded cap Thomas No. 1234H49 is a universal cap with a vented overcap designed to fit pre-existing filling systems for other product brands. Vented overcap has 1.0 µm PTFE membrane sealed into the peelable foil cover. 1234H51 is a 33 mm filling cap featuring a Male MPC End Cap with a…

  • Disposable Aseptic Transfer Caps for Plastic Erlenmeyer Flasks


    …Polycarbonate Erlenmeyer flasks. These aseptic transfer caps can also be used on Corning 850 and 1700cm 2 plastic disposable roller bottles. Venting port ends in a 50mm diameter vent filter with a 0.2µm pore PVDF membrane and a barbed fitting Liquid transfer port has an internal…

  • Flask Caps

    Celltreat Scientific

    Solid or vent replacement caps for tissue culture and suspension culture flasks, packaged sterile (gamma irradiated) Vent caps feature 0.22um hydrophobic membrane for gas exchange Manufactured from medical grade virgin polyethylene (HDPE)

  • Vented Easy Grip Polyethylene Roller Bottle Cap


    Features large knurls for ergonomic handling Contains hydrophobic membrane for applications requiring gas exchange Sterilized by gamma radiationDoes not fit 490cm² roller bottles .

  • PYREX® Round Media Storage Bottles with GL45 PBT Plug Seal High Temperature Cap


    …A wide range of optional caps are available for these bottles: Polypropylene colored caps in a choice of orange, green, purple, red, and light gray for ease of sorting and identification Vented membrane cap with 0.22µm PTFE hydrophobic membrane PBT caps with silicone septa for…

  • GL45 6 Baffle Shake Flasks

    Bellco Glass 

    Class A Borosilicate Glass, 3 side baffles positioned at 120 degree and 3 bottom baffles offset from side baffles, GL45 PP Membrane Cap has a sealed in 0.2µ PTFE membrane, cap can be tightened during autoclaving.

  • Breathe-Easy & Breathe-Easier Membranes

    Diversified Biotech

    …and Breathe-Easier membranes allow microtube cap closure and wont bind in centrifuge rotors. Sized to fit 0.5 and 2.0 mL microcentrifuge tubes, membranes are formatted with an easy use finger tab and a convenient scoring liner to make removal quick and easy. Both membranes are FDA-approved for…

  • Disposable Polyethylene Vent Cap for GL45 Plastic Spinner Flasks, Sterile


    These disposable high density polyethylene sterile vent caps contain a 0.2µm pore hydrophobic PTFE membrane. They are designed to fit the Corning® 500mL, 1L and 3L Disposable Spinner Flasks (Cat. Nos. 3153, 3561and 3563) for culture applications requiring increased gas exchange. They also fit…

  • Molded Closures for 10-425 Screw Thread Vials

    Thermo Scientific Sun SRi

    Natural molded polypropylene closures are a convenient alternative when a resealable closure is not required. The thin membrane allows for easy needle penetration and the purchase and assembly of septa are not required with this easy-to-use one-piece closure.

  • Mini Dialysis Kit

    GE Healthcare

    …dialysis. The dialysis tubes in the kit each have a cap that incorporates a small disk of dialysis membrane Designed for efficient dialysis of small sample volumes. Uses disposable dialysis tubes with dialysis membrane incorporated into caps. Conical tube bottom maximizes sample recovery …

  • Cap Membrane Kit 1.25 Mil PE (6 each), includes electrolyte (yellow cap)


    Includes bottle of electrolyte, 1 sanding disc, and 6 screw-on cap membranes. 1.25 mL PE membranes.  Yellow cap. Response Time (T95 - from 0 to 100%) = 8 seconds Flow Dependence After 4 Minutes = 25% Required Flow Rate = 6 inches/second

  • Cap, Cellstack, 33mm Vent, 0.2Micron, Orange, S, Ind


    33mm threaded cap Vented cap has 0.2um pore nonwettable (hydrophobic) membrane sealed directly to the cap Allows gas exchange while minimizing the risk of contamination Sterilized by gamma irradiation

  • Whatman GV 050 Series Glass Vacuum Filtration Device

    GE Healthcare

    …in dry heat to 180°C.Can be used up to 200°C.GV 050 Series GV 050/0 Glass Vacuum Filtration Device, glass frit filter, rubber stopper connection, silicone cap and supplied with air inlet, membrane filter accessories GE Healthcare offers a choice of Whatman holders for use with membrane filters.

  • Nunclon Treated Tissue Culture Flasks, Filter Cap

    Thermo Scientific Nunc

    … Sterile Cap contains 0.22 mm hydrophobic filter, which prevents wetting and bacteria from growing through membrane while allowing quick, stable buffering in aCO2 incubator. Filter membrane has a three-dimensional matrix of polyethylene fibers. Plug-seal cap guarantees maximum…

  • Probe Caps And Maintenance Kits

    Thermo Scientific Orion

    …oz.), two membrane caps and a polishing disk. 7238F20 Maintenance Kit includes electrolyte solution (2 oz.), cleaning solution (2 oz.), cleaning paper, three membrane caps and a filling pipet. 7238F56 Maintenance Kit includes electrolyte solution (2 oz.), two membrane caps and a polishing…

  • Whatman Mini UniPrep G2 Multicompressor HPLC/UHPLC

    GE Healthcare

    … Designed for GE’s Mini-UniPrep G2 ? with integral borosilicate glass autosampler vial, plunger and attached filter membrane, and septum with cap Glass construction prevents interference of leachables from plastic housing with HPLC/UHPLC pharmaceutical analysis Mini-UniPrep…

  • Ammonia Ion Electrode Accessories

    Thermo Scientific Orion

    …Standard Solutions; 0.1 M ammonium chloride or 1,000 ppm as N. Replacement Membranes or Membrane Caps; Loose membranes for probes with O-Ring membrane holder; membrane caps for probes with threads to mount membrane. Nitrate Test Kit Permits use of Ammonia Electrodes to measure nitrate …

  • 5913 Cap Membrane Kit


    Includes bottle of NaCl electrolyte, 1 sanding disc, and 6 screw-on cap membranes. 1.25 Mil PE, Polyethylene membranes. Yellow cap. Response Time (T95 - from 0 to 100%) = 8 seconds Flow Dependence After 4 Minutes = 25% Required Flow Rate = 6 inches/ second

  • BOD Lab Cable and Probe


    …is a self-stirring BOD probe designed to fit into standard 300 mL BOD bottles and used with the DO200 handheld DO instrument. Uses wall power - power supply included Modular design allows for serviceability Uses convenient screw-on PE cap membranes for the fastest repsonse times

  • Hybridization Oven/Incubator Accessories

    Techne (Bibby Scientific US)

    …End Caps (7187D22 and D23) Of borosilicate glass, eliminating the need for a silanizing agent 7187D22 usable length 195 mm x 80 mm external diameter (73 mm internal diameter); 7187D23 usable length 195 mm x 44 mm external diameter (37 mm internal diameter). Maximum number of membranes

  • Orion Membrane Cap Kit For Do Probes

    Thermo Scientific Orion

    Reduce probe servicing time and eliminate assembly problems using Thermo Scientific™ Orion™ Membrane Caps for Polarographic Dissolved Oxygen Probe. Convenient screw-on membrane caps help ensure optimal probe performance

  • Diffusion Caps with Membrane


    For passive air sampling to ensure correct diffusion path length. Same as standard diffusion caps but with a silicone membrane.

  • 5909 cap membrane kit 2.0ml PE


    Includes bottle of electrolyte, 1 sanding disc, and 6 screw-on cap membranes. 2.00 mL PE membranes, Blue cap Response Time (T95 - from 0 to 100%) = 17 seconds Flow Dependence After 4 Minutes = 18% Required Flow Rate = 3 inches/second  

  • Whatman Solvent IFD In-Line Filter/Degasser (IFD)

    GE Healthcare

    …resistant polypropylene membrane and housing, built to filter solvent mobile phases without expensive stand-alone degassing equipment Air vent on inlet with luer lock cap Integrity-testable with the bubble point method End fittings included – for replacement rings and caps, see our IFD end…

  • Caps


    caps though custom colors are available upon request. Duo Cap Accompanies both flat and baffled flasks of all sizes. Also available for media bottles. Constructed in standard blue polypropelene with a PTFE 0.22 µm membrane. Ideal for aerobic/anaerobic cell culture. Septum Cap

  • Aqueous IFD And Solvent IFD In-Line Filters/Degassers

    GE Healthcare

    …inlet with luer lock cap to enable priming. The in-line filters work on the principle of “bubble point” - the point of pressure at which gases will pass through a wet membrane. If pressure is maintained below the bubble point, the gas will not pass through the membrane and is trapped by…

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