Dual drain hose system that lets you reach two separate drain valves from a single setup, simplifying the connection between your gray and black tanks. Combine two hoses for a 20' reach, or use a single hose for quick dump station convenience.
The Valterra D04-0178 EZ Coupler Dual Drain System simplifies connecting your gray and black tank valves by giving you one setup that reaches both, instead of running separate hoses for each. The kit's wye adapter combines the flow so you only need to manage a single connection at the dump station.
Built from 18 mil vinyl with UV protection, the hoses are puncture-resistant while staying compact and flexible for storage. Rotating fittings on each hose let everything lay flat rather than twisting up as you connect it.
One setup handles both gray and black tank connections
Combine hoses for 20' reach, or use one for short trips
Lets hoses lay flat without twisting during connection
18 mil construction resists punctures and sun damage
This kit includes two 10' hoses and one 5' hose, all with rotating fittings, plus a clear 90° universal sewer adapter and a wye adapter with rotating fittings, giving you flexibility to configure the setup for either a dual-tank connection or a single extended hose run. SKU: D04-0178 | Series: EZ Coupler
Confirm your RV's drain valves use standard 3" bayonet-style fittings before ordering, as EZ Coupler components are designed around that connection style.
In The Box: • Two (2) 10' Hoses with Rotating Fittings • One (1) 5' Hose with Rotating Fittings • Clear 90° Universal Sewer Adapter • Wye Adapter with Rotating Fittings