Hydroseal Hose Washer Kit, 8 Pieces by Orbit. Orbits Hose Washer Combo Pack includes the revolutionary HydroSeal washer and standard hose washer to stop leaks and keep your arms and legs dry. Saves water and helps prevent leaks between your hose, sprinklers, and all hose-end products. HydroSeal washer into the hose attachment end of your watering tool, and connect your hose. Standard washers included to replace worn or cracked washers. May not work with all hoses.