Class A PYREX graduated cylinders are calibrated “To Deliver” (TD) in accordance with ASTM E-1272 and ASTM E-542. The double scale, numbered both up and down, is in durable blue enamel.  Cylinders are supplied with shock absorbing polyethylene bumper guards. For replacement bumper…

Polystyrene Bottle Top Filters - Surfactant Free Cellulose Acetate Membrane Nalgene 292 Sterile Specially designed for use with reusable glass media storage bottles Fits size 1,000 mL bottles with standard 33 or 45 mm neck finish Contains a 90 mm SFCA membrane filter with 0.2 mm pore size.…

Media-Plus Filter Units - Surfactant Free Cellulose Acetate Membrane (4619L10 and L20) Nalgene 161 Gamma radiation-sterilized for immediate use 1,000 mL upper; 1,000 mL receiver Disposable filter units with 90 mm diameter SFCA membrane (57.2 cm 2 usable filter area) and low protein-binding.…

90 mm Supor® machV PES membrane Polystyrene housing Molded-in graduations 597 Bottle Top Filters feature a 90 mm diameter asymmetric polyethersulfone membrane. Filters screw securely onto glass media bottles with 33- or 45- mm neck sizes and allow direct filtration of liquid into…