Nalgene 2097 Fluorinated HDPE Carboys without Spigot. Safe, durable, cost-efficient line of narrow-mouth carboys feature fluorinated surfaces, (both inside and outside) for improved barrier properties and reduced solvent absorption and permeation. Fluorinated polypropylene screw closure. Fluorination enhances long-term container performance, prevents permeation loss yields lower extractables. For use with most acids, alkalis and aggressive organic solvents. Split- and puncture-resistant. Heavy-duty walls. Handles on shoulders of carboy. Leakproof.