IW Tremont Venting & Filtering ThIn-Line Filters

IW Tremont's venting and filtering ThIn-Line filter units are a unique series of economical and reliable in-line filtration units ideally suited for venting applications and filtration of fluidic volumes too large for syringe filters. The transparent inlet side allows a visual indication of filter loading. These in-line filter units are ultrasonically welded and can withstand light-duty vacuum pressure (<70cm/Hg) or positive pressure (50psi). Each in-line filter is operated with the "clear" side as the inlet and the opaque white side as the outlet. Inline filters are connected using the stepped hose barbs or via a standard slip-port syinge filter inserted in to the clear side step barb.

Applications for Use:

  • Venting of carboys, stir bottles and reservoir tanks
  • Venting of bioreactor low-pressure reactor flasks
  • Vacuum or positive pressure filtration applications
  • Tank to smaller vessel transfers
  • Filtration of media or broth
  • Very low back-pressure with even wetting and linear flow rates


Benefits include:
  • 30% less expensive than typical heavy-duty over-molded designed in-line filters
  • Highly chemical resistant polypropylene housing
  • Very low extractables commonly known to cause background noise within analysis applications
  • Ultrasonically welded with no use of adhesives or solvents
  • Pure virgin 100% polypropylene housing construction without pigments or dye
  • 100% made in the USA and Quality Assurance tested using a 12-point pre- and post-manufactured methodology