The J052G is a 4oz PET single wall jar with 58-400 neck finish. Single wall jars are normal 1-piece jars. They’re called “single wall jars” to distinguish them from the 2-piece double wall jars. This jar is made of polyethylene terephthalate (PET). PET is of the polyester family and is semi-rigid, and very light-weight. It has high clarity, is strong and impact-resistant. It has a good chemical resistance. Avoid using PET containers to store products that contain essential oils greater than 5% or fragrance oils greater than 15%. If your oil percentages exceed these respective levels, please consider using glass.
Fits with the black PP 58-400 smooth skirt lid with liner (232599)