Viper 1H Pull-Out Kitchen Faucet 1.75gpm Chrome Product Information Product Overview Connection Type: 9/16 -24unef 3/8 Compression ConnectionFlow Rate: 1.75gpm Max Flow Rate @ 60 psiInstallation: 1- or 3-Hole InstallationSpray/Stream Function: Dual-function sprayhead offers choice between single steady flow and a powerful sprayBrand: Gerber Features Cartridge Type: Includes Durable Ceramic Disc Valve for Drip-Free PerformanceIntegral Check Valve: Includes integral check valve for backflow preventionRetraction: Features our proprietary SnapBack Retraction SystemRetraction Weight: Easily Adjustable Grip Lock WeightWarranty: Limited lifetime Components Deck Plate Sold Separately: Da665051 Optional Deck Plate Sold Separately