ADS 1537ADL Locking Sump Lid, 18 in Dia, HDPE

The ADS 1537ADL is a heavy-duty 18-inch locking sump basin lid designed to provide a secure, durable cover for compatible ADS sump basins and foundation drainage systems. Manufactured from high-density polyethylene (HDPE), the lid resists corrosion, moisture, and impact while helping prevent dirt, debris, odors, and accidental contact with the sump pit. Its twist-lock design allows quick installation and easy future access for maintenance, while molded knockout locations can be customized for discharge piping, vent pipes, and electrical cords. Lightweight yet durable, the 1537ADL is ideal for residential basement drainage systems, sump pump installations, and foundation waterproofing applications.

Cross References

• ADS — 1537ADL: 18 in Locking Sump Basin Lid
• ADS — 1537AD: Heavy-Duty Solid Sump Lid (non-locking version)
• ADS — 1537ADNL: 18 in Notched Locking Sump Lid

Usage

The ADS 1537ADL is installed on compatible 18-inch ADS sump basins to provide a secure protective cover over the sump pit. The locking design helps reduce accidental access while limiting dirt, debris, moisture, odors, and radon gas migration from the basin. Molded knockout locations can be opened to accommodate discharge piping, vent piping, and electrical cords, allowing the lid to be customized for individual installations. It is commonly used in residential foundation drainage systems, basement sump pump installations, and waterproofing applications where a durable, removable basin cover is required.