Cole-Parmer Aspirating Pipet 2 ml Sterile Individually Wrapped Case of 500 Pipets

Cole-Parmer® 2 mL Sterile Individually Wrapped Aspirating Pipettes (0495-308) – Case of 500

The Cole-Parmer® 0495-308 is a medical-grade, single-use liquid handling component engineered specifically for fluid aspiration, media evacuation, waste removal, and general washing steps in tissue culture and microbiology applications. Fabricated from premium, high-clarity virgin polystyrene, these 2 mL pipettes are intentionally manufactured without graduations and without an internal plug filter. This non-plugged, open-bore architecture maximizes suction throughput and facilitates uninterrupted liquid transfer. Supplied sterile and individually wrapped in a case of 500 pipettes, this product ensures an absolute aseptic barrier for critical cell culture maintenance loops.

Technical Performance & Design

• Plugless High-Velocity Flow Channel: Designed without a cotton or polyester plug insert, completely eliminating the risk of filter blockage or vacuum restriction during high-volume liquid draw or cell debris extraction.
• Optically Clear Virgin Polystyrene: Molded from pure, optical-grade polystyrene resins to provide an unhindered visual path, allowing operators to monitor fluid clarity, capture color transitions, or detect accidental cell pellet uptake.
• Aseptic Individual Peel-Pack Wrap: Each pipette is hermetically sealed within an easy-to-peel paper/plastic wrapper. This packaging format permits smooth, sterile transfer into biological safety cabinets (BSCs) and laminar flow hoods.
• One-Piece Seamless Construction: Eliminates physical joints or internal welding seams along the length of the pipette body, reducing structural stress points and minimizing fluid shear or sample turbulence.

Product Specifications

• Model Number / SKU: 0495-308 (Factory Aspiration Series)
• Manufacturer Line: Cole-Parmer® Instrument Company
• Volumetric Class: 2 mL Nominal Rating (Open-channel configuration)
• Graduation Markings: None (Plain, non-graduated body optimized for evacuation)
• Material Chemistry: 100% High-Purity Virgin Polystyrene (PS)
• Internal Filter Element: None / Non-Plugged Architecture
• Sterility Status: Gamma Irradiated Sterile (SAL 10⁻⁶ validated baseline)
• Purity Verification: Certified non-pyrogenic, DNase-free, RNase-free, and non-cytotoxic
• Packaging Configuration: Case of 500 Pipettes (Individually wrapped, paper/plastic peel sheets)
• System Compatibility: Fits all standard manual pipette controllers, motorized pipetting guns, and vacuum aspiration tubing adapters.

Key Benefits & Applications

• Tissue Culture Media Evacuation: Ideal for removing spent growth media, saline rinses (DPBS), and detached trypsin solutions from cell culture flasks, multi-well plates, and petri dishes prior to feeding cycles.
• Supernatant & Buffer Waste Removal: Serves as an efficient extraction tool for drawing off supernatant fluid layers following centrifugation steps without disturbing sensitive genomic or proteomic pellets.
• Cross-Contamination Mitigation: The sterile, single-use design completely replaces reusable glass Pasteur pipettes, eliminating the labor-intensive washing, autoclave validation, and cross-contamination variables associated with glass cycling.
• Clinical Sample Aspiration Protocols: Highly recommended for molecular diagnostics and clinical labs requiring trace-level purity certifications to protect ongoing qPCR, NGS, and multiplex assay platforms from carryover contaminants.

Cole-Parmer® is a registered trademark of the Cole-Parmer Instrument Company, LLC. Part number 0495-308 specifies the sterile, non-graduated, plugless 2 mL aspirating format. For routine fluid measurement or precise sample dispensing applications, standard graduated serological pipettes outfitted with internal aerosol filter barriers must be utilized instead.