The Pall FLK02-18663 is the correct replacement for the following:
The Pall FLK02-18663 Filter Cartridge is a genuine double layer polytetrafluoroethylene (PTFE) membrane that is designed specifically for removing contaminants such as bacteria and viruses. With Emflon PFR technology these filters are reinforced with greater strength, longer life and the ability to withstand the rigors of "in-situ" steaming in forward or reverse direction.
Also known as part number AB05PFR2PVH4, the Pall Membrane Sterile Air Cartridge can withstand up to 1 bar or 14.5 psi differential pressure under steam sterilization conditions.
Pall Membrane Cartridge Replacement specifications:
The Pall Emflon filters provide long life and high assurance of filter integrity during continuous use in hot air up to 60 degrees Celsius and in vent applications up to 80 degrees Celsius with repeat.