Every bench has all four of them: 50 mL Falcon tubes, 15 mL conical tubes, 1.5 mL microcentrifuge tubes, and 0.5 mL microfuge tubes. Most labs have four different racks to hold them. The Heathrow Scientific HS29022 4-Way Tube Rack holds all four tube sizes simultaneously in a single interlocking segment — and five segments snap together to double, triple, or quadruple capacity without crowding the bench.
Each segment provides 4 wells at 30mm (50 mL tubes), 12 wells at 17.5mm (15 mL tubes), 32 wells at 8.2mm (0.5 mL microfuge), and 32 wells at 11.6mm (1.5/2.0 mL microcentrifuge). Autoclavable, water bath compatible, and freezer-safe. Available in seven colors — including an Assorted 5-pack spanning Blue, Green, Yellow, Orange, and Pink — for immediate color-coded sample organization across multiple users or projects.
Features and Benefits
Holds All 4 Tube Sizes Simultaneously: A single rack segment accommodates 50 mL (30mm), 15 mL (17.5mm), 1.5/2.0 mL (11.6mm), and 0.5 mL (8.2mm) tubes in dedicated well rows — one rack replaces four.
Interlocking Segments: Each pack includes 5 individual rack segments that snap together side-by-side to create a longer rack — mix and match colors or align segments to scale capacity for any workflow size.
Molded Alphanumeric Identification: Permanent molded grid markings across all well rows enable fast, reliable tube location and retrieval — no adhesive labels required on the rack itself.
Autoclavable Polypropylene: Withstands standard 121°C sterilization — racks can be autoclaved between experiments or users without warping, cracking, or well deformation.
Water Bath and Freezer Compatible: Chemical-resistant polypropylene construction withstands both elevated water bath temperatures and sub-zero freezer storage — one rack works across the full temperature range of standard lab workflows.
7 Color Options Including Assorted: Choose a single color for uniform organization or select the Assorted 5-pack (Blue, Green, Yellow, Orange, Pink) for immediate multi-user or multi-project color coding without ordering multiple SKUs.
Pack of 5 Segments: Five interlocking segments per pack — use individually, snap together as needed, or distribute across bench stations for maximum organizational flexibility.
Specifications
| Property | Value |
|---|---|
| SKU Series | HS29022A–G |
| Brand | Heathrow Scientific |
| Material | Polypropylene |
| Quantity | Pack of 5 interlocking segments |
| Dimensions per Segment (L x W x H) | 6.9 x 3.7 x 2.1 in (17.4 x 9.5 x 5.2 cm) |
| 50mL Wells | 4 wells, 30mm diameter |
| 15mL Wells | 12 wells, 17.5mm diameter |
| 1.5/2.0mL Wells | 32 wells, 11.6mm diameter |
| 0.5mL Wells | 32 wells, 8.2mm diameter |
| Autoclavable | Yes |
| Water Bath Safe | Yes |
| Freezer Compatible | Yes |
| Colors Available | Natural, Blue, Green, Pink, Yellow, Orange, Assorted |
| Weight | 1.7 lb per pack of 5 |
| Country of Origin | China |
Well Capacity Summary
| Tube Size | Well Diameter | Wells per Segment | Wells per 5-Pack |
|---|---|---|---|
| 50 mL conical | 30 mm | 4 | 20 |
| 15 mL conical | 17.5 mm | 12 | 60 |
| 1.5/2.0 mL microcentrifuge | 11.6 mm | 32 | 160 |
| 0.5 mL microfuge | 8.2 mm | 32 | 160 |
Laboratory Applications
Molecular biology and genomics workflows where multiple tube sizes are active simultaneously — PCR tubes, microfuge aliquots, 15 mL reagent tubes, and 50 mL buffers all within reach on a single rack
Cell culture and protein work requiring concurrent access to microcentrifuge tubes for enzyme aliquots and large conical tubes for media — eliminating the need to reach across multiple rack types during active protocols
Shared labs assigning individual rack segments to different users — 5 interlocking segments allow each researcher to have a color-coded personal rack from a single pack
Clinical and diagnostic labs running multi-tube sample processing workflows in water baths where a single autoclavable rack holds all required tube formats
Frequently Asked Questions
What does Pack of 5 mean — are these 5 identical racks or 5 segments that form one rack?
Each pack includes 5 individual rack segments. Each segment is a complete, standalone 4-way rack that holds all four tube sizes on its own. The segments are also designed to interlock side-by-side, so you can snap 2, 3, 4, or all 5 together into a single extended rack for higher capacity. The Assorted pack (HS29022G) includes one each of Blue, Green, Yellow, Orange, and Pink.
Will standard 1.5 mL and 2.0 mL microcentrifuge tubes both fit the same wells?
Yes. The 11.6mm wells accommodate both standard 1.5 mL and 2.0 mL microcentrifuge tube outer diameters — the two sizes are interchangeable in the same well row.
Can the interlocked rack be separated after snapping together?
Yes. The interlocking mechanism is designed for repeated connection and separation — segments can be rearranged, redistributed, or used individually without damage to the connectors.
Can this rack be autoclaved and used in a water bath in the same experiment?
Yes. The polypropylene construction withstands both autoclave sterilization (121°C) and water bath temperatures, as well as freezer storage — making it compatible with temperature-cycling workflows without requiring separate rack sets.
Which color option gives me the most organizational flexibility?
The Assorted 5-pack (HS29022G) provides five different colors (Blue, Green, Yellow, Orange, Pink) in a single order — ideal for shared labs where color coding is assigned by user, project, or sample type from day one.
Quality Assurance
Heathrow Scientific manufactures the 4-Way Tube Rack from chemical-resistant polypropylene tested for dimensional accuracy across all four well sizes and structural integrity through repeated autoclave, water bath, and freezer cycling. Interlocking connectors are tested for reliable repeated attachment and separation without fatigue failure.
Academic and Institutional Pricing
LabSupplies.com offers tiered quantity pricing for academic and research institutions. As an authorized dealer, we ship directly from USA inventory.