Overfill Alert Gauge 1.5" SS NPT Opening - Model OF-1.5-12-S3

The Overfill Alert Gauge is a high level visual gauge designed to visually alert you that your AST (tank) is near full. This overfill monitor's simple pop up mechanical design promotes easy installs, maximum durability, and low up front costs. Overfill Alert Gauge Construction – Stainless steel rods, floats and bushing, includes aluminum lock nut and glass calibration. Gauge comes with a 1.5'' NPT opening & 12'' tank depth.