PEHD, PP screw cap. Safe, durable, cost-efficient line of wide mouth bottles for packaging and transporting of hazardous materials. Split- and puncture-resistant. Wide mouth allows for easy filling of liquids or dry materials. 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 4; 1.1.6 and IATA Dangerous Goods Regulations Section 188.8.131.52. Leakproof.