Whatman^® polyamide NL17 filter discs 0.45 μm pore size

Whatman^® polyamide NL17 filter discs 0.45 μm pore size, white, hydrophilic, 100 ea, 47 mm diam

Whatman^® polyamide NL17 filter discs 0.45 μm pore size, white, hydrophilic, 100 ea, 25 mm diam

Whatman^® polyamide NL17 filter discs 0.45 μm pore size, white, hydrophilic, 100 ea, 50 mm diam