Glass Fiber Membrane filter,0.45um,25mm,100pcs/pack ML GF 47045 Glass Fiber Membrane filter,0.45um,47mm,100pcs/pack ML GF 90045 Glass Fiber Membrane filter,0.45um,90mm,50pcs/pack. ML GF 142045 Glass Fiber Membrane filter,0.45um,142mm,25pcs/pack ML PT 293045 Glass Fiber Membrane filter,0.45um,293mm,25pcs/pack