Disposable Bottletop Aspirators Save time—presterilized disposable filtration units - Individually wrapped for sterility - Easy-pouring large cap on reservoir Filtration Glass and Stainless Steel Microanalysis Filter Holders Ideal for small to medium volumes of liquid - Graduations on funnel and reservoir for improved accuracy Disposable bottletop aspirators provide a complete vacuum filtration solution for your separation and purification needs. All units come presterilized by gamma irradiation and certified nonpyrogenic, and are individually wrapped in easy-to-open packages. The large openings on the reservoir and funnel make for easy access. The funnel is made of clear polystyrene for easy viewing; bottle and filter adapter are made of 100% virgin polypropylene. PES Membrane Filter Units and Bottletop Filters Standard size for microbiology and particulate analysis Available with sintered glass, stainless steel, or PTFE support The glass filter holders feature borosilicate glass funnel and base, silicone rubber stopper, and anodized aluminum clamp. The 90-mm holders are ideal for large-volume viscous samples or those with a heavy particle or bioburden that would clog a 47-mm filter. Model 06645-98 is for sterility testing of antibiotics and pharmaceuticals; it features a silicone funnel cover and tubing, glass stopcock, stainless steel injector needle, and 13-mm holder. Model 06644-80 features an unbreakable 304 stainless steel funnel/base/ support and a PTFE gasket—the entire holder can be flame sterilized to sanitize between samplings. Set pins and a locking nut on the funnel prevent twisting and tearing of the membrane. PVDF Membrane Filter Units Nylon Membrane Filter Units Mixed Cellulose Ester (MCE) Membrane Filter Units Membrane size ^Model 06644-84 has a two-part funnel connected by a ground-glass joint. US Toll-free: 800-323-4340 • Outside the US: 847-549-7600 • www.coleparmer.com | Cole-Parmer®Canada 800-363-5900 • India 91-22-6139-4444 • UK 0500-345-300