Conical Centrifuge Tubes with Screw Caps

Everyday lab tubes for growers, hobbyists, and classrooms.

Graduated conical tubes with leak-resistant screw caps, sourced largely from university lab surplus and offered at a fraction of new-supply prices.

Handy uses

• Collecting soil, water, and environmental samples for agar experiments
• Storing sterile water for culture work
• Holding tissue samples from wild mushrooms on the way home
• Measuring and mixing small volumes
• Organizing small parts and supplies

Choose your size

• 15 mL: Compact tubes for small samples
• 50 mL: Larger tubes for bigger samples and more volume

Good to know

• Sterility: Tubes are not guaranteed sterile. Clean or sterilize them as appropriate for your use.
• Heat: Check the material marking on the tube before autoclaving or pressure cooking. Polypropylene (PP) tubes generally tolerate it; other plastics may not.
• Surplus stock: Brand and exact style may vary from what's pictured. Every tube is new and unused.

For hobby, educational, and general lab use. Not for medical or diagnostic use.