Durable Plastic Test Tube Holder for 15-18 mm Tubes, 50 Slots, 18.7mm Diameter, Detachable Design by Karter Scientific

The 50-hole test tube rack is an essential tool for anyone needing to organize small cylindrical items such as homemade chapsticks, ink samples, or test tubes. With a diameter of 18.7mm (0.74 inches), it accommodates test tubes with an outer diameter ranging from 15mm to 18mm, making it versatile for various uses.

Material and Durability:
Made from laboratory-grade polystyrene, this test tube rack is both durable and lightweight. It’s easy to carry but not suitable for autoclaving. The material ensures longevity, making it a reliable choice for both professional and personal use.

Design and Functionality:
The rack features a three-layer design with two slots per layer. Each layer is directional, allowing you to slide the shelves in from one side, while the opposite side has a lip to secure them snugly. This design ensures stability and prevents the tubes from tipping over. The smallest holes at the bottom keep the tubes steady, while larger holes on the second and top layers provide easy access and visibility.

Versatility and Use Cases:
This rack is ideal for holding various small cylinders upright, such as lip balm tubes or test tubes. It’s perfect for DIY enthusiasts, hobbyists, and laboratory professionals. Whether you’re crafting homemade products or conducting experiments, this rack offers a practical solution for organizing and displaying your items.

Common Questions:

1. Can this rack hold tubes larger than 18mm?
No, it is specifically designed for tubes with an outer diameter of 15mm to 18mm.

2. Is the rack autoclavable?
No, the polystyrene material is not suitable for autoclaving.

3. How stable is the rack when fully loaded?
The three-layer design with varying hole sizes ensures excellent stability even when fully loaded.

Buyer’s Perspective:

I recently purchased this 50-hole test tube rack for my homemade lip balm business, and it has been a game-changer. The polystyrene construction is lightweight yet sturdy, making it easy to move around my workspace. I appreciate the snug fit and stability provided by the three-layer design, which keeps my products upright and organized. The rack’s versatility also allows me to store ink samples and other small items efficiently. If you need a reliable and practical solution for organizing small cylinders, this rack is a fantastic choice!