Environmental Express Polyethylene Overcaps for BOD Bottles (Item #D1050) Ensure the highest standard of accuracy in your wastewater and environmental testing workflows. Explicitly engineered for demanding laboratory environments, these overcaps provide a tight, dependable seal over the mouth of your Biochemical Oxygen Demand (BOD) bottles, systematically eliminating sample loss through evaporation during critical incubation cycles.
Adhering strictly to regulatory guidelines is paramount for certified environmental laboratories. The use of a dedicated containment cap over the bottle mouth is strongly recommended and required by Standard Methods for the Examination of Water and Wastewater. These high-density polyethylene (PE) caps seat snugly against the precise rim and shoulder profile of disposable testing vessels, acting as an impermeable barrier that preserves sample integrity and ensures legal defensibility of your analytical data.
⚠️ Compatibility Note:These overcaps are custom-molded strictly for 300 mL disposable plastic BOD bottles. They are not compatible with traditional glass BOD bottles.









