Standard plastic pegs warp after the first autoclave cycle — leaving your rack unable to hold tubes securely and forcing premature replacement. The Heathrow Scientific HS24312 Peg Tube Rack is built from fiberglass-reinforced polypropylene (GFPP), a material that maintains peg geometry through repeated sterilization cycles without bending, leaning, or splaying. Designed for 10–13mm diameter tubes up to 7 mL, this 96-place rack handles high-throughput sample organization on the benchtop or in cold storage.
An embossed alphanumeric grid across all 96 positions lets researchers and clinicians locate and retrieve specific tubes instantly — no counting rows, no guessing. The open peg design provides clear visibility of tube contents and labels without removing tubes from the rack. Each order includes a Pack of 2 racks. Available in White and Blue for color-coded lab organization.
Features and Benefits
Fiberglass-Reinforced Polypropylene (GFPP): Pegs maintain their geometry through repeated autoclave cycles — no warping, bending, or splaying that compromises tube retention after sterilization.
Embossed Alphanumeric Grid: All 96 positions are individually labeled with embossed row letters and column numbers — enables fast, error-free tube retrieval in large-batch workflows.
Open Peg Design for Visibility: Spacious peg spacing allows clear viewing of tube contents, cap colors, and labels without removing tubes from the rack — speeds up sample identification.
96-Place High Capacity: Holds 96 tubes in a compact 3.2 × 5.0 in footprint — maximizes bench utilization and allows uniform organization of full 96-well plate equivalents.
Universal 10–13mm Well Diameter: Accommodates a wide range of standard 7 mL tube types from all major manufacturers — one rack works across multiple tube brands.
Pack of 2 - Color Choice: Each order includes 2 racks. Available in White or Blue for color-coded organization across experiments, users, or sample types.
Specifications
| Property | Value |
|---|---|
| SKU Series | HS24312A (White), HS24312B (Blue) |
| Brand | Heathrow Scientific |
| Material | Fiberglass-Reinforced Polypropylene (GFPP) |
| Number of Places | 96 |
| Well Diameter | 10–13 mm |
| Compatible Tube Size | 7 mL |
| Dimensions (L x W x H) | 3.2 x 5.0 x 2.7 in (8.2 x 12.6 x 6.9 cm) |
| Quantity | Pack of 2 |
| Autoclavable | Yes |
| Colors Available | White, Blue |
| Weight | 0.86 lb (0.39 kg) per pack |
| Country of Origin | China |
Laboratory Applications
Clinical chemistry and serology — organized benchtop holding of blood collection and serum tubes during processing and analysis
High-throughput screening and compound management where 96-well format organization mirrors standard plate formats for easy cross-referencing
Microbiology culture tube storage where autoclavable racks must maintain peg integrity across repeated sterilization cycles
Biobank and sample repository operations requiring reliable alphanumeric position tracking for large tube collections
Frequently Asked Questions
What does GFPP mean and why does it matter for autoclaving?
GFPP stands for fiberglass-reinforced polypropylene. The fiberglass reinforcement prevents the peg tips from softening and bending under autoclave heat — a common failure in standard polypropylene racks. GFPP pegs stay straight and maintain their tube-holding geometry through repeated 121°C sterilization cycles.
What size tubes fit the HS24312 rack?
The HS24312 accommodates 10–13mm diameter tubes up to 7 mL. This includes standard 7 mL glass culture tubes, small serology tubes, and similar round-bottom labware in the 10–13mm outer diameter range.
How does the alphanumeric grid work?
Each of the 96 positions is marked with an embossed row letter (A–H) and column number (1–12), matching standard 96-well plate coordinates. This lets you reference tube positions in lab notebooks or LIMS systems without ambiguity.
How many racks come in an order?
Each order at the listed price includes a Pack of 2 racks. Both racks are the same color — choose White (HS24312A) or Blue (HS24312B) from the color selector above.
Quality Assurance
Heathrow Scientific manufactures this peg tube rack from fiberglass-reinforced polypropylene (GFPP) to ensure structural integrity through repeated autoclave cycles. Each rack is designed to maintain consistent peg geometry and well spacing across the full 96-position grid, supporting accurate alphanumeric tube tracking in clinical and research applications.
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.