4.5x4x0.75 Foam Refrigerant Cold Bricks - 12+ Day Chill Protection, Case of 42

$54.71
/ case of 42$1.30 per box
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Ships from the nearest of 5 US warehouses · freight calculated at checkout
30-day returns on stock items · Return policy
Inside dimensions
4 1/2" × 4" × 3/4"
Board / material
Foam Refrigerant
Color
White
Freight class
Class 55
Specifications
| Inside dimensions | 4 1/2" × 4" × 3/4" (L × W × H) |
|---|---|
| Board / material | Foam Refrigerant |
| Color | White |
| Sold as | Case of 42 |
| Order in multiples of | 1 |
| Case weight | 21.88 lb |
| Outer carton (shipping) | 18.25 × 10.0 × 5.5 in |
| LTL freight class | Class 55 |
| GTIN | 841436070188 |
| SKU | RB8 |
About this item
SKU RB8 — 4 1/2" × 4" × 3/4", Foam Refrigerant, White. Sold as a case of 42, shipped from US warehouses.
Common questions
How long do these cold bricks maintain temperature?
Re-Freez-R-Brix® Cold Bricks maintain uniform cooling for over 12 days, protecting perishables from thawing and temperature fluctuations during long-distance shipments. Actual duration depends on ambient conditions and insulation quality of your shipper box.
Are these cold bricks food-safe and non-toxic?
Yes. These foam refrigerant bricks are formulated with food-safe, non-toxic materials and sealed in heavy-duty plastic pouches, making them suitable for pharmaceutical, food, and biological product shipments without contamination risk.
What makes the 3/4" thickness beneficial?
The compact 3/4" profile maximizes usable space in insulated shippers while maintaining consistent temperature control. This efficiency reduces overall package dimensions and weight, lowering shipping costs without sacrificing cold chain protection.
Can I use these bricks for multiple shipments?
Yes, Re-Freez-R-Brix® Cold Bricks are reusable. After each shipment, simply re-freeze them according to product instructions. This reusability makes them cost-effective for high-volume shippers managing recurring cold chain logistics.
Order support
Questions on specs or freight?
Send the SKU, quantity, and delivery ZIP and we will confirm specs, availability, and freight before you order.



