Alerts you before overfilling. It eliminates potential spills and accompanying mess. The indicator installs in seconds and attaches to any 3/4" male garden hose opening. The red tipped "bobber" provides a visual signal when your tank is almost full.

 PROP 65 WARNING: This product may contain chemicals known to the State of California to cause cancer and birth defects or other reproductive harm. Wash hands after handling. For more information, visit www.P65Warnings.ca.gov