Amazon.com: Camco RhinoFlex 10-Ft RV Clean-Out Gray/Black Water Hose with Rinser Cap | Features 4-Way Water Pressure Blaster & Water Shut-off Valve | Great for Cleaning Camper Black Water Tanks & More (
3/4" Hose Kit with Flush Port Assembly | Geo-Hydro
Hose Kit with Flush Port Assembly Complete 1" | Geo-Hydro