The beautiful Ambassador chrome stand-by switch conserves water when used with handheld showers, slide-bar showers, deck sprayers, and more. Fits most 1/2" hoses. 1/2" NPS-F and 1/2" NPS-M connections. Note: This is NOT a complete shut-off. "Stand-By' mode will allow a small amount of water to continue to trickle out the sprayer.