AgilentCentrifuge tube, polypropylene, graduated, 29 mm od, 115 mm, conical base, wide neck, threaded top, 500/pkSKU · 190065200
CorningCorning® Spin-X® UF 20 mL Centrifugal Concentrator, 100,000 MWCO Membrane, 12/CaseSKU · 431491