Control:ValvE Spout type:For filtered water Mounting:Vertical Material:Stainless Steel Cold & Hot Water:Yes Style:Single Holder Single Hole Type:Ceramic Plate Spool Feature:Cold and Hot Model Number:MQY2019531 Rotatable Or Not:Yes Spray Type:Pull Out Number of Holes for Installation:Single Hole Valve Core Material:Ceramic Number of Handles:Single Handle Installation Type:Deck Mounted Surface Treatment:Blackened Surface Finishing:Chrome Origin:Mainland China Certification:CE If you have any problem with the installation, please e-mail us first and we are on your service 24 hours. We do appreciate and treasure your advice on our product improvement. ❤TWO CONTROL MODES: mechanical handle switch and electronic touch on/off control (batteries powered, no need to plug in). ★ Operation Method: open and adjust the handle for temperature and then control the faucet by touching the faucet body. ★ Please note that 4 pieces of AA batteries (can power the faucet 1 year) are needed but not included in our superior sponge package. ❤Best Family Use and Commercial Kitchen Faucet. Superior than ordinary touch on kitchen faucet in application of Smart Safe Technology and better than touchless kitchen faucet due to avoiding too sensitive detection to turn on water when not needed. ★ Superior stainless steel finish resists tarnish, fingerprints, water spots and corrosion from daily use. Durable brushed finish offers your kitchen a lifetime sleek look. ❤Two-function Spray Patterns on faucet sprayerhead: steady steam water, powerful rinse water   ★ Two spray buttons design helps you save water greatly. Press the round pause button when not in use immediately and switch the spray modes when you wash different items from vegetable to heavy-duty applications. ★ The pulldown design also allows for 360 degree extended easy access to your sink. ❤Safe Isolation System Technology ensures your safe convenient daily use. Superficial easylife convenience offered by smart technology in fact comes from years of invisible precise engineering design. We dedicate ourselves to every detail. Our Smart Touch Sense Faucet integrates water outlet channel and electronic control system and isolates them with special design. ★ We use Selected High Grade European Ceramic Cartridge to ensure lifelong use without leaking problem. Question: How does it connect to existing water lines? Threaded fittings or snap on type? Answer: Threaded The kitchen faucet has cold water pipes and hot water pipes, and the corresponding water pipes are twisted together. Question: What hole size should I drill for this dual-mode sensor kitchen faucet? Answer: It is recommended to drill a hole size of 35 mm to install this touch kitchen faucet. Question: Is the entire faucet stainless steel? Would it hold up to outdoor installation? Answer:  Of course, the kitchen faucet is made of stainless steel and is SUS304 stainless steel. You can install it outdoors, that's fine, but compared to the indoors, it's definitely a little longer when used indoors or in the kitchen.