Larger diameter tubes need a rack that can take the heat — literally. Standard polypropylene pegs warp after repeated autoclaving, leaving 14–17mm tubes loose and at risk of tipping. The Heathrow Scientific HS24311 Peg Tube Rack uses fiberglass-reinforced polypropylene (GFPP) to keep every peg straight and every tube secure through sterilization cycle after cycle. Designed for 14–17mm diameter tubes up to 10 mL, this 50-place rack handles the larger tube formats common in serology, virology, and culture workflows.
Like its 96-place sibling, the HS24311 features an embossed alphanumeric identification grid across all 50 positions for rapid, error-free tube retrieval. The open peg design gives clear visibility of tube labels and contents without removing tubes from the rack. Each order includes a Pack of 2 racks in your choice of White or Blue.
Features and Benefits
GFPP Construction - Pegs Stay Straight: Fiberglass-reinforced polypropylene resists peg deformation at autoclave temperatures — maintains reliable tube support through hundreds of sterilization cycles.
Embossed Alphanumeric Identification: All 50 positions are individually labeled for fast location and retrieval — essential in high-throughput diagnostic and research environments.
14–17mm Well Diameter: Sized for larger culture and serology tubes in the 10 mL class — accommodates round-bottom glass tubes, vacutainer-style tubes, and similar 14–17mm labware.
Open Peg Design: Clear sight lines to tube labels and contents without removal — speeds up sample checks during active workflows.
Compact 7.4 × 4.1 in Footprint: 50-place capacity in a bench-friendly profile — efficient use of workspace during multi-tube processing workflows.
Pack of 2 - White or Blue: Each order includes 2 racks for immediate deployment across two workflows or benches. Color choice supports lab-wide color-coding systems.
Specifications
| Property | Value |
|---|---|
| SKU Series | HS24311A (White), HS24311B (Blue) |
| Brand | Heathrow Scientific |
| Material | Fiberglass-Reinforced Polypropylene (GFPP) |
| Number of Places | 50 |
| Well Diameter | 14–17 mm |
| Compatible Tube Size | 10 mL |
| Dimensions (L x W x H) | 7.4 x 4.1 x 2.7 in (18.8 x 10.4 x 6.9 cm) |
| Quantity | Pack of 2 |
| Autoclavable | Yes |
| Colors Available | White, Blue |
| Weight | 0.78 lb (0.35 kg) per pack |
| Country of Origin | China |
Laboratory Applications
Serology and virology — organized benchtop holding of 10 mL round-bottom culture tubes during infection and incubation protocols
Clinical diagnostics — handling of vacutainer-style blood collection tubes in the 14–17mm diameter range during processing and centrifugation workflows
Microbiology labs requiring autoclavable tube racks that retain full structural integrity across routine sterilization schedules
Sample management in shared labs where color-coded racks assign different users or project groups to designated equipment
Frequently Asked Questions
How does the HS24311 differ from the HS24312?
The HS24311 is a 50-place rack with 14–17mm wells designed for larger 10 mL tubes. The HS24312 is a 96-place rack with 10–13mm wells for smaller 7 mL tubes. Both use the same GFPP construction and alphanumeric grid system.
Will standard 16mm glass culture tubes fit this rack?
Yes. The 14–17mm well diameter range accommodates standard 16mm glass culture tubes used in microbiology and serology. The peg spacing provides secure hold without overtightening.
Can GFPP racks be autoclaved the same way as standard polypropylene?
Yes. GFPP is compatible with standard autoclave protocols at 121°C for 20 minutes. The advantage over plain PP is that GFPP pegs maintain their shape after autoclaving — plain PP pegs often soften and splay permanently over time.
How many racks come per order?
Each order at the listed price includes a Pack of 2 racks — both in the same color. Select White (HS24311A) or Blue (HS24311B) using the color option above.
Quality Assurance
Heathrow Scientific manufactures this peg tube rack from fiberglass-reinforced polypropylene (GFPP) to ensure peg integrity through repeated autoclave cycles. Each rack is designed for consistent well geometry, stable base support, and durable embossed alphanumeric markings that remain legible throughout the product's service life.
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.