Waterdrop Water Filter for Sink Faucet, NSF Certified Water Purifier, 320 Gallon Tap Water Filter for Kitchen Sink, Reduces Chlorine, Lead-Free Material, Faucet Mount Water Filtration System 4 Filters: ! ! Does pull out, hand held, spray style faucets or faucets with sensor. Please verify if our product suits your faucet before purchase per the detailed instructions in product pictures. Operating Temperature: 41 122 5 50; Operating Working Pressure: 15 100 psi 100 689 kPa. NSF certifications: Tested and certified by NSF International against NSF ANSI standard 42 for the reduction of chlorine, taste and odor, and to NSF ANSI 372 for lead free