EBW™ brand monitoring well cap plugs expand on the inside diameter of the screen pipe casing to form a vapor and watertight seal. An integrated locking mechanism prevents unauthorized access. The locking mechanism features a captured bolt, eliminating potential drop-out. The cap is a distinctive yellow color and features the words "Do Not Fill - Monitor Well" which is molded into the cap.
*Body: Corrosion-proof plastic
*Gasket: Buna-N