Touch-Flo style pure cold water faucet with 6-1/2" in. overall height with 2-5/8 in. spout projection This unit fits counters up to 1-3/8” thick . Adapters available for thicker countertops. Faucet can be mounted in a hole size greater than ½ in. up to 1-3/8 in. Can be installed with water filter and/or in-line chiller; cannot be modified to use with hot water tank. If using water filter (F400 in-line water filter unit & F400R cartridges sold separately), install between water supply and faucet Single plastic spring piston handle assembly. 1/4 in. compression tube inlet Solid Brass construction. Faucet trim only. Do not use plumber's putty for installation use silicone seal