
2.5 mL K₂EDTA Polystyrene Blood Collection Tubes (15×54 mm) – K4740
Mid-Volume EDTA Tubes for Reliable Blood Collection
The K4740 is a 2.5 mL blood collection tube made from clear polystyrene, treated with K₂EDTA anticoagulant. It measures 15×54 mm externally and comes with a pink skirted screw cap for colour-coding. It is designed for labs needing moderate sample volumes with dependable anticoagulation and clear visibility.
Key Features
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Volume: 2.5 mL — provides enough blood for standard tests without excess.
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Anticoagulant: K₂EDTA (dry if standard; amount per tube matched to ~1.75 mg EDTA per mL of blood).
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Material: Polystyrene — allows easy visual inspection of sample clarity, colour, and presence of clots.
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Dimensions: 15×54 mm external — accommodates slightly larger draws while still fitting many standard racks or holders.
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Cap & Colour: Pink skirted screw cap — standard EDTA colour to help prevent misidentification.
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Temperature Range: −4 °C to +60 °C — suitable for typical lab storage, transportation, and handling.
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Centrifugation Rating: Up to ~1,500 × g — safe for routine centrifugation protocols.
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Packaging: Supplied in bulk (e.g. 100, 500, or 1,000 units) to support high-volume use and to reduce per-unit costs.
Why Choose K4740 Tubes
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Ideal when you need more blood volume than micro-tubes offer, but still want clarity and standard EDTA anticoagulant.
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Helps reduce redraws by letting you run multiple assays from a single draw.
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Clear tube walls make it easier to spot any sample issues before processing.
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Colour coding supports laboratory workflow and reduces errors in sample handling.
Explore our full EDTA blood tube range
Typical Applications
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Clinical diagnostic labs requiring more sample without going to large volumes.
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Multiple assays or tests from a single sample (e.g. full blood count plus extra tests).
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Medical, veterinary, or research applications where moderate draws are acceptable.
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Facilities needing standard EDTA anticoagulation in a robust tube format.
See EDTA tube accessories & caps
Technical Specifications
Specification | Detail |
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Tube Volume | 2.5 mL |
External Dimensions | 15 × 54 mm |
Material | Polystyrene |
Anticoagulant | K₂EDTA (dry, appropriate mg per tube) |
Cap Colour / Type | Pink skirted screw cap |
Temperature Range | −4 °C to +60 °C |
Max Centrifugal Force (RCF) | ~1,500 × g |
Pack Sizes | Available in 100 / 500 / 1,000 units per order |
Order the K4740 Tubes
For reliable, moderate-volume blood collection with standard EDTA anticoagulant and good sample clarity, the K4740 2.5 mL Polystyrene EDTA Tube is an excellent choice. Purchase now to ensure your lab has ample supply for diagnostic, clinical, or research workflows.
In Summary
5mL K2E tube content - 4.375mg K2EDTA, 15x54mm polystyrene tube with pink screw cap. Temp range -4C to 60C. RCF 1500g.
Dipotassium EDTA top grade 1.75mg per mL supplied dried in base of the tube
Tubes can be prepared to your specification - content can be varied and colour coding changed to suit your needs
CE marked in accordance with EU directive 98/79/EC

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