This 20-foot extension harness serves larger RVs, fifth wheels, and custom layouts where the valve control panel sits distant from waste tanks. The semi-universal connector works with Valterra 1-1/2-inch and 3-inch E-valve models, eliminating the need for multiple short cables or junction boxes.

Plug-and-play installation means no special tools or wiring knowledge required—simply connect at the control box and valve. The black cable jacket protects the conductors while maintaining reliable power transmission over the extended 20-foot run.

• 20-foot extension length
• Works with 1-1/2-inch and 3-inch E-valves
• Semi-universal connector design
• Plug-and-play installation
• Black cable construction