Our 4G Boxes are U.N. Department of Transportation (D.O.T.) Certified. This 4G/Y15 Fire Extinguisher / Gas Cylinder shipper combination packaging box is specifically designed and tested to ship gas cylinders only. All of our UN Rated products are fully tested and in compliance with U.N. Regulations. In compliance with the current and most strict government regulations, eligible to ship according to D.OT CFR-49. IATA, ICAO, IMO / IMDG.

Please note, all dimensions shown for all boxes are internal dimensions. These boxes are shipped flat to reduce shipping costs. If you have any questions regarding our products or If you do not see the products you need, please contact us.

*4G Boxes are tested with 3" water activated paper tape.

**Please note: Larger quantity orders may be cheaper to ship via Freight LCL. Freight costs are not automatically calculated. If you find your UPS costs too high, proceed with your order and a customer representative will contact you with your shipping quote before processing your order.