Product details:

• NEST Scientific 347113
• 1 filter per sterile bag, 24 filters per case
• Filter only
• Polyvinylidene fluoride (PVDF) membrane 
• 0.45 μm membrane pore size
• Lowest protein binding of any common filtration membrane
• High chemical resistance, except for strong acids and bases
• Ideal for HPLC or GC sample preparation 
• Hydrophilic
• 45℃ maximum working temperature
• 50mm diameter membrane filter
• Polystyrene cap and cup on top
• Acrylonitrile-Butadiene-Styrene (ABS) neck

Quality you can rely on:

• Low chemical extractables
• Produced in a cGMP (21 CFR part 820) ISO 13485:2016 and ISO 9001 facility
• Molded and packed in ISO 7 cleanroom
  
• Sterilized by E-beam, SAL=10-6
• Lot tested free of pyrogens USP 85
• Lot tested free of cytotoxins/pyrogens  In Vivo USP 88 and In Vitro USP 87
• Lot tested free DNase/RNase and DNA 
• Lot tested free BSE/TSE
• Certified free of animal products
  

Vacuum bottle top filter systems are an inexpensive and easy way to sterilize and clarify biological media. They also feature PVDF membrane, which offer high chemical resistance and lower protein binding than other membrane types, e.g. PES.