Melnor Metal Double Female Adapter 59Z FB-HD - The Home Depot
2 Pack 3/4 Inch Brass Garden Hose Connector with Dual Swivel for Male Hose to Male Hose, Female to Female Hose Adapter : Amazon.ca: Patio, Lawn & Garden
3/4" Garden Hose Female to Female Twist Adapter | GHT
Anderson Metals Brass Garden Hose Fitting, Connector, 3/4" Female Hose ID x 3/4" Male Pipe x 1/2" Tapped Female Pipe : Amazon.ca: Patio, Lawn & Garden