Rhino's RV Tote Tank Gauge helps stop overfilling and potential spills by indicating when your tote tank is reaching capacity. This universal gauge works with most tote tank brands. It is easy to install and attaches to standard garden hose male fittings (¾-11.5 NH threads). Once attached, the gauge allows your tote tank to vent while filling or dumping. When transporting your tote tank, you can close the gauge to seal the tank. This polymer gauge has a 1 ½-inch diameter and is approximately 3-inches tall (when installed).