Filtration unit with cellulose nitrate membrane Pore size 0.45 μm, with grid, 150 ml, 150 ml, 50 mm | Bottle-top filter systems | Filtration and separation | Filtration, Water Purification, Dialysis | Labware | Carl Roth - International
Cellulose Nitrate (Mixed Cellulose Ester) Membrane Filters / Type 11306, 0.45 µm pore size, 100 pieces per pack | Sartorius
USABlueBook - Cellulose Nitrate Filter Paper 0.45um, 4.7 cm
Whatman 10407714 Cellulose Nitrate MicroPlus-21 ST Filter Membrane, Sterile, 50mm White Circle with 3.1mm Black Grid, 0.45 Micron (Pack of 100): Science Lab Filter Membranes: Amazon.com: Industrial & Scientific