https://www.biesterfeld.com/en/mx/product/pes-polyethersulfone/
PES - Polyethersulfone - Veradel® | Biesterfeld SE
Veradel® transparent Polyethersulfone (PES) offers high heat deflection, good chemical resistance and excellent electrical properties. Please contact us.
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https://www.filtersource.com/products/GSPES0.2A10C7B
GSPES0.2A10C7B - Polyethersulfone - Membrane Filter Cartridge from Global Filter
membrane filterpolyethersulfonecartridgeglobal