Nalgene 2199 Wide-Mouth HDPE IP2 Shipping Bottles with Polypropylene Screw Closures. 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. Guaranteed leakproof.