I think that theoretically a non sterile liquid filter can be used as long as integrity tests pass and differential pressure across the filter does not exceed maximum allowable differential pressure stated by filter manufacturer.
But I think it is preferred to know the duration (no. of usages) after which the used filter in your non sterile facility typically deteriorates regarding integrity or differential pressure and define this duration in the SOP for changing the filter.
But in case of sterile liquid filter used for non terminally sterilized aseptically filled sterile products extensive validation studies for aseptic filtration process should be accomplished regarding maximum filter usage period and other filtration aspects. Generally it is preferred to use aseptic liquid filter not more than 1 working day and not more than 1 batch, according to EU Annex 1 Draft 2017 which is expected to be approved during this spring
http://academy.gmp-compliance.org/guidemgr/files/2017_12_PC_ANNEX1_CONSULTATION_DOCUMENT.PDF
Annex 1 Aseptic filtration.pdf (84.2 KB)