Amazon.com : M MINGLE Garden Hose Adapter, Female to Female, 3/4 Inch Heavy Duty Brass Connect Fittings with Dual Swivel, Pressure Washer to Garden Hose Connector, 2-Pack with Extra 4 Washers and
LYUMO 1 inch Female Thread Quick Connection Hose Connector Water Pipe Adapter for Home Garden, Hose Adapter - Walmart.com
Heavy Duty Double Female Connector 1/2-inch. NPT x 3/4-inch. NH Thread