50pcs/lot 0.45/0.22um/0.65um/0.8um 50mm Microporous MCE Water Microfiltration Membrane Filter Acetate cellulose

50pcs/lot 0.45/0.22um/0.65um/0.8um 50mm Microporous MCE Water Microfiltration Membrane Filter Acetate cellulose

Aliexpress UK