Polypropylene screw caps
Recycling Information: Nalgene reusable HDPE bottles are designed to last many years under typical laboratory conditions. Yet, as with all durable products, they need to be retired and replaced eventually. Nalgene HDPE bottles and their packaging are readily recyclable. Please recycle the corrugate cartons and LDPE bags in which your Nalgene bottles products are packaged. And at end of product life, please wash and recycle your Nalgene HDPE bottles.