18" Water Tank Threaded Lid Polyethylene

Keep your water supply secure, clean, and contained with this 18" diameter threaded lid. This heavy-duty replacement lid ensures a precise, airtight fit to prevent contamination and evaporation on the 210 and 480 Gallon RO and Reject water tanks in the backroom of the wash site.

• Heavy-Duty Construction: Molded from high-density polyethylene (HDPE) for maximum chemical resistance and UV protection.
• Precision Threading: Features deep, rugged threads that provide a secure, leak-resistant seal without the need for complex tools.
• Integrated Venting: Designed to allow for proper airflow during filling and draining, preventing tank vacuum or over-pressurization.