Laboratory / Venting and Gas Filtration / 0.45 µm, hose barb (18/pkg)
0.45 µm, hose barb (18/pkg) product photo Primary L

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Acro® 50 Vent Devices with PTFE Membrane - 0.45 µm, hose barb (18/pkg)

Product ID: 4256 Need this product with different specifications

Min Order Qty: 1
$ 319.20 / PAC
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Stepped hose barb
EFA (Effective Filtration Area)
19.6 cm²
Pore Size (Removal Rating)
18 pkg
Size (Metric mm)
50 mm


0.45 µm, hose barb (18/pkg)


Materials of Construction

Filter Media: PTFE on a polypropylene support
Housing: Polypropylene

Filter Diameter

50 mm

Effective Filtration Area

19.6 cm2

Typical Air Flow Rates

0.2 μm: 8 Lpm at 0.2 bar (20 kPa, 3 psi)
0.45 μm: 12 Lpm at 0.2 bar (20 kPa, 3 psi)
1 μm: 15 Lpm at 0.2 bar (20 kPa, 3 psi)

Maximum Operating Temperature

130 °C (266 °F) at 1.0 bar (100 kPa, 15 psi)

Maximum Operating Pressure

4.1 bar (410 kPa, 60 psi) at ambient temperature


Overall Length: 8.2 cm (3.2 in.)
Diameter: 7.3 cm (2.9 in.)

Inlet/Outlet Connections

Stepped hose barbs, 6.4-12.7 mm (1/4-1/2 in.) diameter. Connections have internal taper design to accept male slip luer. The 0.2 μm pore size devices are available with 1/8 in. MNPT or 3/8 in. (9.5 mm) OD straight type connections. The 1 μm pore size device is also offered with a 1/8 in. MNPT connection.

Biological Safety

Passes United States Pharmacopeia (USP) Biological Reactivity Test, In Vivo

Minimum Bubble Point (IPA, 100%)

0.2 µm: 1.03 bar (103 kPa, 15 psi)
0.45 µm: 0.34 bar (34 kPa, 5 psi)
1 µm: 0.21 bar (21 kPa, 3 psi)



Wrap the Acro 50 vent filter in autoclave paper and autoclave at 121-123 °C (250-253 °F) at approximately 1.0 bar (100 kPa, 15 psi) for a maximum of 20 minutes. Note: It may be necessary to run a drying cycle or air purge to remove residual condensation from the product before using. Reuse requires individual integrity testing and consideration for other problems including cross-contamination.


Specific cycles for sterilization and associated studies should be validated by the user.

Gamma Irradiation

Not recommended.

“Pall Laboratory products are designed for laboratory applications only. This product is not approved for use in medical, clinical, surgical or other patient applications. If you require further assistance in product selection for your chosen application, please email us a question or call 1-800-521-1520."


Vent Filters


Sterile Filtration and Clarification


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