Reusable 50 mm filters with superior performance for critical applications

• Reusable, autoclavable. Ideal for use with bioreactors and fermenters.
• PTFE membrane and polypropylene housing have broad chemical resistance.
• Large surface area provides greater throughput and permits higher air flow rates than competitive devices.
• Available with a variety of inlet and outlet connectors.

Acro 50 devices provide superior performance in these applications:

• Venting of bioreactors, fermentation tanks, and carboys.
• Sterile gas purging of culture vessels.
• Filtration of aggressive solvents.

Materials of Construction
Filter Media: PTFE on a polypropylene support
Housing: Polypropylene

Effective Filtration Area
19.6 cm²

Dimensions
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
1/8 in. MNPT
9.5 mm (3/8 in.) straight pipe

Maximum Operating Temperature
130 °C (266 °F)

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

Recommended Integrity Test
Minimum Bubble Point – Methanol
0.2 µm: 0.9 bar (90 kPa, 13 psi)
0.45 µm: 0.5 bar (50 kPa, 7 psi)
1 µm: 0.2 bar (20 kPa, 3 psi)

Typical Methanol Flow Rate
mL/min at 1.0 bar (15 psi)
0.2 µm: 350
0.45 µm: 550
1 µm: 700

Typical Air Flow Rates
L/min at 0.2 bar (20 kPa, 3 psi)
0.2 µm: 8
0.45 µm: 12
1 µm: 15

Biological Safety
Passes United States Pharmacopeia (USP) Biological Reactivity Test, In Vivo <88>

Sterilization
Provided non-sterile, individually packaged (except PN 4250). Can be sterilized by autoclaving at 121 - 123 °C (250 - 253 °F) for 20 min. Integrity should be verified after each autoclave cycle and before use.

Part Number	Description	Pkg	Price	Qty
Acro 50 Vent Devices
4251	0.2 µm, hose barb	18/pkg	204.93
4250	0.2 µm, hose barb	72/pkg	559.03
4400	0.2 µm, 1/8 in. MNPT	18/pkg	214.83
4401	0.2 µm, 9.5 mm (3/8 in.) straight pipe	18/pkg	212.76
4256	0.45 µm, hose barb	18/pkg	210.03
4258	1 µm, hose barb	18/pkg	210.03
4003	1 µm, 1/8 in. MNPT	18/pkg	215.04

Contact Customer Service at 800-521-1520 for possible lead-time and date item will be available to ship.