Lab supplies
3-Pack Plastic Test Tube Racks — 21-Hole Detachable Holders (White)
Product description
These test tube racks are molded from tough PP plastic for repeated use without cracking. Each assembled rack measures approximately 24.7 x 10.6 x 6.3 cm (9.7 x 4.1 x 2.4 in) and includes 21 circular openings sized to accept tubes up to about 1.18 inches (30 mm) in diameter.
Each rack is supplied as three interlocking flat pieces that snap together to form the finished holder. The three-piece design allows the racks to be stored flat or taken apart for transport, saving bench or storage space when not in use. Package contents: three tube racks.
The stacked-hole layout and tiered openings make it simple to insert and remove tubes, so you can suspend samples while they dry or hold multiple tubes during routine experiments. The plastic surface wipes clean and resists staining, providing easy maintenance and a long service life.
These racks are intended for holding and organizing tubes — they are not designed as heat-resistant supports for direct flame or high-temperature applications. They work well for classroom demonstrations, hobby projects, specimen drying, and general lab organization.
Pros
- Includes three racks for more storage and organization
- Durable, lightweight unbreakable PP plastic
- Disassembles flat for compact storage; easy to clean
Cons
- Not suitable for heating tubes or high-temperature use
- Hole diameter limited to about 1.18 inches (30 mm)
- Tabs can be a bit tight when snapping pieces together
VerdictA practical, inexpensive set of lightweight test tube racks for classrooms, hobby labs, and home use. The unbreakable PP construction holds up to 21 tubes per rack (up to 30mm / 1.18" diameter) and dismantles to lay flat for storage. They assemble quickly and wash easily. Not intended for direct heating or heavy-duty industrial use, but a solid solution where affordable, portable tube organization
Reviews
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Marilyn Satre 5/5
Handy Size for Labs
Compact and practical for science benches and class demos. Fits well on a crowded lab table.
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Desert Drummer 5/5
Works As Expected
Does what it’s supposed to. No complaints.
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Tracy C. 5/5
Perfect for Caterpillar Rearing
Great for keeping monarch caterpillars during rearing. Works exactly as I needed.
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Jacob 5/5
Worked for TCs in Pressure Cooker
Fit inside my pressure cooker for TCs and performed fine for that use.
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Danielle 5/5
Excellent for Syringe Drying
I use these to dry and organize my toddler's G-tube Enfit syringes from 0.5 mL up to 12 mL. Though made for lab tubes, they hold the syringes well. Assembly was simple, the plastic feels sturdy, and they clean up easily. Getting three racks is very convenient for keeping items sanitary and organized.
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Heather Krogemann 3/5
Hole Size Was Too Small for My Needs
These are okay but the holes were smaller than I expected. They didn’t fit what I needed.
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Moises Garcia 5/5
Arrived Fast and As Described
Arrived quickly. Easy to assemble and exactly as described.
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Melonie D. 5/5
Good Choice for Classroom Supplies
Perfect for middle school use where heavy-duty lab gear isn’t required. They arrive flat in small bags, snap together in under a minute, and solved our shortage of racks. Remember these are plastic—don’t use them for heating tubes or hot metal supports.
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Robin H 4/5
Good Value, Assembly Is a Bit Stiff
Decent racks for the price compared with lab suppliers. They can be a little stubborn getting all the tabs into place, but once assembled they hold together well.
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