1/2” O.D., WaterMark Single Weighted Check Valve Bailer, Case of 24

1/2” O.D. Bailers with 500 ml capacity and 5/16” Delrin Ball, Case of 24. Allows easier sample extraction from varying well depths. Has polyethylene retainer on top with weight, bottom polyethylene retainer, and slotted nozzle for easy sample removal. Made of inert polyethylene, these inexpensive, disposable bailers are pre-cleaned in Liquinox™ laboratory detergent and then rinsed with de-ionized water, helping you eliminate cross contamination of samples and time-consuming clean-up in the field. Each bailer measures 36” long and has a friction fit nozzle for easy removal of sample.