▪ Polished Chrome ▪ Prevent Water Flow Back Into Clean Water Supply ▪ Installs Between Any Wall Supply And Flexible Hose On Handheld Shower ▪ Standard 1/2" NPT Connection ▪ Durable Brass Construction ▪ Attach Between A Supply Outlet And A Personal Shower Hose (Both Sold Separately) ▪ Compatible With All Personal Showers ▪ Mfg #1660400.002