A red and black cylindrical device with a brass rod extending out, ending in a white plastic float. The device appears to be a fluid level sensor or float switch, set against a plain white background.

High Level Tank Sensor

Air operated float level sensor alarm with high level sensor and alarm whistle, rotating collar allows 360º indexing of float

Part No.:

OA-1 - Overfill warning valve. Valve is used to shut-off the air supply to the pump when the tank approaches full capacity. 6 1/2" shutoff height

OA-1EXT - Overfill warning valve. Valve is used to shut-off the air supply to the pump when the tank approaches full capacity. 17 3/8" shut-off height