New domed-designed ends avoid hang-ups when lowering or retrieving bailers! Designed for taking single samples, these inexpensive, non-weighted, disposable Teflon bailers are pre-cleaned in Liquinox laboratory detergent and then rinsed with de-ionized water. They also help eliminate cross contamination of samples and time-consuming clean-up in the field. They have a 1/2" check ball and a 1-5/8" O.D. allowing them to be used in wells 2" I.D. or larger. Optional VOC Removal Device allows you to remove samples with the lowest possible amount of agitation. Case of 12.Forestry Suppliers, Inc.