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Minisart® Syringe Filter, Polytetrafluorethylene (PTFE), Pore Size 1.0 µm, Non-Sterile, Hose Barb 5.5–9 mm Stepped, Hose Barb 5.5–9 mm Stepped, Pack Size 500

Minisart® HY with chemically inert hydrophobic PTFE is suitable for venting as well as filtration of gases and oils with a pH of 3 - 12. Type 1659B with a pore size of 1 µm can be used as particle and aerosol barrier. It has a hose barb inlet and outlet. Version HYQ is a non-sterile bulk pack. Units can be sterilized by EO .

Item no.:  1659B--------HYQ

Lead time:  Discontinued


Non-sterile Minisart® HY syringe filters are supplied in bulk packs. This reduces waste and makes the handling easier whenever the application allows filtration or venting under non-sterile conditions. The low-binding PTFE membrane is the best option for leachable free filtration. Due to its hydrophobic nature the PTFE membrane functions as a water barrier and does not become wetted by aerosols. This keeps the hydrophobic venting filter permeable for gas or air! The housing of the filter is made of MBS (Methacrylate butadiene styrene) which has a limited compatibility with alcohols but is free of phthalates and passes the plastic class VI test. It is glueable, e.g. to tubing, what enables assembly and sterilization by the user. Housing and membrane are tightly connected which allows bidirectional use.

  • Bulk packs for less waste
  • PVC-free
  • Glueable, e.g. to tubing
  • Bidirectional use possible
  • Very low non-specific binding

Compliance Information

  • Biosafety
    All materials of this filter element meet the requirements of the current USP Biological Reactivity tests for plastics Class VI (Systemic Injection, Intracutaneous and Implantation tests).
  • Cytotoxicity
    According to ISO 10993-5


  • Filter Diameter
    ⌀ 26 mm
  • Filtration Area
    5.3 cm²
  • Housing Dimensions
    33 × 41 mm


  • High Flow

General Specifications

  • Flow Rate
    4000 mL/min with air at 0.1 bar (1.5 psi)
  • Maximum Allowable Back Pressure
    4.0 bar (58 psi) at 20°C
  • Total Throughput
    up to 100 mL
  • pH Range
    3.0 – 12.0

Materials of Construction

  • Housing Material
    Acrylic-based multipolymer compound (MBS)

Operating Conditions

  • Maximum Allowable Working Temperature
    60 °C (140 °F)
  • Maximum Inlet Pressure
    4.0 bar (58 psi)
  • Maximum Operating Pressure
    4.5 bar (65 psi)
  • Operating Pressure
    4.5 bar (65 psi)

Physicochemical Information

  • Bubble Point
    Min. value with ethanol 0.5 bar (7 psi)
  • Burst Pressure
    Min. value 7.0 bar (102 psi)
  • Non-Fiber Releasing
    This filter product complies with the title 21 of the Code of Federal Regulations (CFR), section 210.3(b)(6) and 211.72.
  • Pore Size
    1.0 µm
  • Wettability

Product Information

  • Pack Size
  • Packaging
    Bulk pouch packed


  • Delivery Condition


  • Hold-up Volume
    100 – 150 µL before bubble point