Other than using an autoclave or pressure cooker, what is the best way to sterilize filters?

The reason I ask is that I’ve been doing tons and tons of research regarding filters (both bottle top and 47mm filtering flask types) and I’ve found that most, if not all, of the plastics that are utilized for the reservoir on top of the bottle top filters are not compatible with BA or BB or both.

So, I’ve decided to utilize my filtering flask/300ml funnel vacuum setup.

By the way, I’ve decided to use Whatman Regenerated Cellulose (RC) membranes. I tried the polypropylene-backed PTFE membranes; however, the BB melted the polypropylene backing from off the membrane (this is what led to me discovering that Bb and/or BA or not compatible with most bottle top reservoir plastics!

i did consider PVDF; however, half of the compatibility charts said PVDF was compatible with BB with other charts saying either BB is not compatible or there was no data available. Regenerated cellulose, according to all charts I seen, is comapatible with BB and BA.

So, again, how would you guys sterilize the filter discs/membranes?