Falcon® 352057 | 14mL Round Bottom Polystyrene Test Tube with Dual-Position Snap Cap, Sterile — 25/Pack, 500/Case

Product Description

The Falcon® 352057 is a 14mL round-bottom polystyrene test tube with dual-position snap cap — one of the most widely used and referenced tube formats in laboratory and clinical research worldwide. Dual-position snap caps, heavier gauge walls, and unique construction provide a secure, positive seal. These tubes come with polyethylene dual-position snap caps, which offer both vented and fully closed positions. RNase/DNase-free. Widely used and referenced in laboratory protocols. Rated to 1,400 RCF. Sterile, nonpyrogenicity tested to <0.1 EU/mL. 17 × 100mm. Sold 25 per pack and 500 per case.

Dual-Position Snap Cap — Vented and Fully Closed in One Cap The polyethylene dual-position snap cap of the 352057 is the defining feature that makes this tube so versatile across so many applications. The dual position snap-cap prevents sample loss with ease of handling. The cap operates in two distinct positions — fully closed for liquid-tight sample containment during centrifugation, transport, and storage, and partially open (vented) to allow controlled gas exchange during incubation, cell culture, and biological assays requiring CO&sub2; or O&sub2; exchange without exposing the sample to open-air contamination. This dual-position functionality eliminates the need to stock both capped and uncapped tube formats for different workflow stages — a single 352057 covers both requirements.

Heavier Gauge Walls — Secure Positive Seal, Reliable Sample Containment Dual position snap caps with heavier gauge walls and unique construction provide a secure, positive seal. The heavier gauge wall construction of the 352057 snap cap provides greater mechanical rigidity and resistance to deformation than standard snap caps — maintaining the positive seal integrity during high-speed centrifugation, repeated opening and closing cycles, vortexing, and transport conditions that would cause standard caps to partially open or lose seal integrity.

Polystyrene Construction — Exceptional Optical Clarity Polystyrene tubes are best suited for procedures requiring high optical clarity. The clear polystyrene construction of the 352057 provides exceptional optical transparency — allowing direct visual inspection of sample volume, color, turbidity, and precipitate formation without removing the tube from the rack or opening the cap. This optical clarity is essential for cell culture applications requiring visual monitoring of growth, pelleting, and media color, for clinical sample collection and processing where sample appearance is part of the diagnostic workflow, and for any application where tube contents must be visually assessed quickly.

1,400 RCF Rating — Reliable Centrifugation Performance 1,400 RCF rating. The 352057 is rated to 1,400 RCF (Relative Centrifugal Force) — the standard centrifugal force rating for polystyrene round-bottom tubes used in routine clinical and research centrifugation. This rating covers the full range of standard applications for this tube format including cell pelleting at low speeds, serum separation, urinalysis sample processing, and other routine centrifugation protocols performed in swinging-bucket and fixed-angle rotors within the tube's rated speed range.

Widely Used and Referenced in Published Protocols Widely used and referenced in laboratory protocols. The Falcon 352057 is one of the most extensively cited laboratory tubes in published scientific literature — referenced by catalog number in thousands of peer-reviewed protocols across cell biology, immunology, hematology, clinical chemistry, and reproductive medicine. When a published protocol specifies Falcon 14mL round bottom tubes, the 352057 is the correct product. This makes the 352057 the default choice for researchers following established protocols and for core facilities standardizing on published SOPs.

Oocyte Collection Tube — IVF and Reproductive Medicine Applications Used as Oocyte Collection Tubes. The Falcon 352057 is the most widely used oocyte collection tube in IVF clinics and reproductive medicine laboratories worldwide — the 14mL round-bottom format and optically clear polystyrene construction provide ideal conditions for oocyte retrieval, visualization, and initial processing. The round bottom facilitates oocyte collection by gravity, the clear walls allow visualization under the stereomicroscope, and the vented snap cap allows gas exchange during brief incubation steps. For IVF clinics sourcing oocyte collection tubes by protocol specification, the 352057 is the reference standard.

Sterile — Nonpyrogenicity Tested to <0.1 EU/mL Sterile, nonpyrogenicity tested to less than 0.1 EU/mL. Every 352057 is sterile and tested for nonpyrogenicity to <0.1 EU/mL — the endotoxin level standard required for clinical applications, cell culture, and any biological assay where endotoxin contamination could affect cell viability, immune cell activation, or downstream assay results.

RNase-Free and DNase-Free RNase/DNase-free. The 352057 is certified RNase-free and DNase-free — qualifying it for RNA isolation workflows, nucleic acid storage, and any molecular biology application where nuclease contamination from the tube material could degrade RNA or DNA samples.

Corning EcoChoice™ — Renewable Energy Manufacturing One or more facilities manufacturing this product is 100% covered by renewable energy through the purchase of unbundled energy attribute certificates (EACs). The 352057 is manufactured under Corning's EcoChoice™ program — produced at facilities powered by 100% renewable energy, supporting sustainability commitments for labs and institutions with environmental purchasing policies.

Compatible Replacement — Cross-Reference Guide

The Falcon® 352057 is the reference standard for 14mL round-bottom polystyrene tubes. Compatible alternatives for labs evaluating equivalent formats include:

• Thermo Fisher Scientific 14-959-11B — Fisherbrand 14mL round bottom polystyrene tube with snap cap, sterile
• Sarstedt 55.526 — 14mL round bottom polypropylene tube with snap cap, sterile
• VWR® 60818-397 — 14mL round bottom polystyrene tube with cap, sterile
• Greiner Bio-One 187261 — 14mL round bottom tube with snap cap, sterile

Competitor brand names and catalog numbers are referenced for cross-referencing purposes only. Compatibility should be verified for your specific application and protocol.

Complete Falcon® Round-Bottom Tube Family:

Key Features

• 14mL round-bottom polystyrene test tube with dual-position snap cap
• Dual-position polyethylene snap cap — vented and fully closed positions
• Heavier gauge cap walls — secure positive seal
• Clear polystyrene construction — exceptional optical clarity
• 1,400 RCF centrifugation rating
• Widely used and referenced in published laboratory protocols
• Used as oocyte collection tube in IVF and reproductive medicine
• Sterile — nonpyrogenicity tested to <0.1 EU/mL
• RNase-free and DNase-free — certified
• Dimensions: 17 × 100mm
• Corning EcoChoice™ — renewable energy manufacturing
• 25 tubes per pack / 500 tubes per case

Supported Applications Cell culture and suspension cell maintenance, oocyte collection and IVF sample processing, flow cytometry sample preparation, immunology and hematology assays, serum and plasma sample processing, clinical urinalysis, PBMC isolation by density gradient centrifugation, cell counting and viability assays, general sample and reagent storage, incubation workflows requiring gas exchange, and any laboratory application requiring a sterile 14mL round-bottom polystyrene tube with dual-position snap cap.

Technical Specifications