Lab supplies

15 mL Sterile Conical Screw-Cap Centrifuge Tubes — Polypropylene, Graduated

4.9 9 reviews 1 min read

15 mL Sterile Conical Screw-Cap Centrifuge Tubes — Polypropylene, Graduated

Review

Material and construction: Each 15 mL tube is injection-molded from high-purity polypropylene for chemical resistance and dimensional stability. The caps are made of polyethylene and screw on to form a secure closure.

Sterilization and temperature resistance: Tubes arrive EO-sterilized and are suitable for autoclave cycles. They are designed to tolerate centrifugation up to a maximum RCF of 12,000 x g when used under recommended conditions.

Graduation and labeling: A clearly printed, easy-to-read graduation scale runs along the side of the tube for precise measurement. A dedicated white panel provides space for permanent or temporary markings to identify samples.

Leak protection and reuse: The screw caps seal tightly to minimize leakage, allowing repeated placement on racks and reuse when appropriate. They work well for storing liquids, powders, small solids, seeds, pills, and other granular materials.

Typical uses: Common applications include sample collection and storage, preparation of small-volume solutions, seed retention, and educational lab exercises. Always check chemical compatibility and fit for specialized protocols.

Pros

  • Sterile and autoclavable construction
  • Accurate printed graduations and writable panel
  • Secure screw caps for leak resistance

Cons

  • Limited compatibility with some aggressive solvents
  • May be too small for certain mycology slants
  • Caps can be misplaced during handling

VerdictThese 15 mL conical centrifuge tubes offer a reliable, lab-grade option for routine sample handling. Constructed from high-purity polypropylene, they accept autoclaving and withstand centrifugation up to 12,000 x g. Each tube includes a screw-on polyethylene cap that seals well for liquids and small solids, and a printed scale plus a white writing area makes tracking and measuring straightforward.

Reviews

  1. NELSON ELIECER 5/5

    Solid choice

    Works very well.

  2. John Ernst 5/5

    Perfect for slants

    Bought them for mycology slants; they perform flawlessly.

  3. Abraham Francisco Cetina Corona 5/5

    Good product

    Caps tolerate heat well.

  4. sara 5/5

    Great for classrooms

    Ideal for hands-on lessons with elementary pupils.

  5. Chris 5/5

    Sealed and well made

    Arrived in a sealed bag and feel sturdy. I intended to use them for mycology slants but the inner diameter was too small for my method.

  6. Dirka 5/5

    Good value with caveat

    They do the job. I had a few fail during a 10,000g run after extended exposure to a nonpolar solvent; otherwise a solid value.

  7. John Blocker 5/5

    Wrong size shipped

    Wrong size sent, but works.

  8. Joel De Gan 5/5

    Excellent value tubes

    Autoclavable conical tubes with screw caps that seal reliably. Sterile on arrival and uniformly made across the pack; no defects so far.

  9. Kelley J 4/5

    Handy for seed storage

    Great for keeping collected seeds organized—label the tube or add tags, and they stayed safe until planting season.

Comments

No comments yet.

Sign in or sign up to comment.

  1. Tattoo Wash Squeeze Bottles — 2-Pack 250ml Flexible Water Dispensers
    Lab supplies

    Tattoo Wash Squeeze Bottles — 2-Pack 250ml Flexible Water Dispensers

    4.9 11 reviews Two 250ml soft-plastic squeeze bottles with angled, narrow nozzles and clear measurement markings. Built to be flexible and leak-resistant, they serve as tattoo rinse bottles, lab wash dispensers, eyelash rinse tools, and precise waterers for succulents and other small potted plants.
  2. Ceramic Mortar and Pestle Set — 150 mL Deep Bowl with Pour Spout
    Lab supplies

    Ceramic Mortar and Pestle Set — 150 mL Deep Bowl with Pour Spout

    4.6 13 reviews A compact 150 mL ceramic mortar and pestle featuring a deep bowl with pour spout, unglazed grinding surface for better traction, and a glazed exterior for easier cleaning. Heat-resistant to 1050°C with strong thermal shock tolerance and suitable for autoclave sterilization. Designed for crushing pil
  3. E-liu Unglazed Porcelain Mortar and Pestle Set with Bamboo Lid
    Lab supplies

    E-liu Unglazed Porcelain Mortar and Pestle Set with Bamboo Lid

    4.8 9 reviews A compact unglazed porcelain mortar and long-handled pestle with a sustainable bamboo lid/coaster. The abrasive interior is made for dry or wet grinding—spices, herbs, supplements, and small batch sauces. Mortar is 4.7" diameter x 1.9" high; pestle is 4.9" long. Mortar is dishwasher-safe; hand-wash
  4. Clear Acrylic 18-Hole Test Tube Rack for 10ml/15ml Tubes
    Lab supplies

    Clear Acrylic 18-Hole Test Tube Rack for 10ml/15ml Tubes

    4.9 8 reviews Transparent acrylic rack with 18 openings arranged in a three-tier frame to keep 10 ml and 15 ml tubes stable. Sturdy, compact, and suitable for labs, bars, classrooms, displays, or home use. Dimensions 150 × 70 × 75 mm; hole diameter 17 mm. Single-piece supply for organizing and testing small tubes
  5. WILIT 2-Pack Rechargeable Wireless Bottle Lamp Shades
    Lab supplies

    WILIT 2-Pack Rechargeable Wireless Bottle Lamp Shades

    4.5 8 reviews Convert wine, whiskey, champagne or other liquor bottles into cordless mood lighting with two rechargeable lamp shades. Natural wood‑grain styling, a silicone adapter for 2.6–3 cm necks, USB charging and IP64 splash resistance make them portable, reusable accents for bars, tables, patios and gifts.
  6. Wall-Mounted Folding Clothes Drying Rack — 40-inch
    Laundry

    Wall-Mounted Folding Clothes Drying Rack — 40-inch

    5.0 2 reviews A compact, wall-mounted drying system that folds flat when not in use. Includes mounting template and hardware, metal support rods, and a secure drop-in locking mechanism. Designed for airing delicates and sweaters in tighter laundry areas.
  7. Matte Black Cabinet Hinges — 1/2in Overlay, Semi-Concealed 4-Pack
    Hardware

    Matte Black Cabinet Hinges — 1/2in Overlay, Semi-Concealed 4-Pack

    4.3 6 reviews Durable matte-black cabinet hinges sold as a 4-pack (2 pairs). Semi-concealed partial-wrap design for face-frame cabinets, self-closing within 30°, with silicone dampers for quiet operation and a complete mounting kit included.
  8. Nordic Ware 6-Cavity Metal Donut Pan — 3-1/4" Cavities
    Bakeware

    Nordic Ware 6-Cavity Metal Donut Pan — 3-1/4" Cavities

    4.8 10 reviews Bake your own classic ring donuts with this six-cavity carbon-steel pan. Each well measures 3-1/4 inches. Nonstick finish for easy release; hand washing and light greasing advised. Fill no more than 3/4 full.
  9. Pebble Keys 2 K380s — Slim Wireless Bluetooth Keyboard (Tonal Graphite)
    Electronics

    Pebble Keys 2 K380s — Slim Wireless Bluetooth Keyboard (Tonal Graphite)

    4.7 13 reviews A lightweight, low-profile Bluetooth keyboard built for portability and quiet typing. The Pebble Keys 2 K380s pairs with up to three devices, features scooped round keys for a laptop-like feel, offers customizable Fn shortcuts via Logi Options+, and uses a minimum of 49% certified post-consumer recy
  10. 6.5-inch 350W Bluetooth Marine Speaker Pair with Blue LED (White)
    Marine

    6.5-inch 350W Bluetooth Marine Speaker Pair with Blue LED (White)

    5.0 1 reviews A pair of 6.5-inch marine coaxial speakers with an integrated Bluetooth 5.0 amplifier, 350W peak power, IP66 waterproof rating, UV-stable construction and built-in blue LED lighting for boats, ATVs and UTVs.