Camco Rhino RV Tote Tank Gauge | Features an Easy Installation, Attaches to a Standard Garden Hose, and Allows the Tote…

An Essential Tote Tank Accessory: Helps prevent overfilling and potential spills by indicating when your tote tank is reaching capacity
Universal Gauge: Works with most tote tank brands
Easy to Install: Attaches to standard garden hose male fittings (¾-11.5 NH threads)

Amazon.com Price: $17.55 (as of 10/01/2023 15:27 PST- Details)