Wide-Mouth PassPort IP2 Bottles high-density polyethylene, polypropylene screw closure. Safe, durable, cost-efficient line of wide-mouth bottles for packaging and transporting hazardous materials. Recommended for customers who are designing, assembling and certifying their own combination packaging. Split- and puncture-resistant. Wide mouth allows for easy filling of dry materials or liquids. Heavy duty walls. Molded into bottom: IP2 marking, material, volume, registration notch and the NALGENE® brand name. Evaluated at 15 psi (103 kPa)* per 49 CFR 173.27 (c) (2), ICAO Technical Instructions Part 3-1; 220.127.116.11, and IATA Dangerous Goods Regulations Section 18.104.22.168.