Counter tops models come with a diverter attached to the mouth of faucet, when not filtered, water flows out from your existing main faucet and thus does not affect your water presure. Under sink models come with a auxillary faucet that will be drilled and installed separate from your main faucet and thus does not affect the water pressure and flow of your existing faucet too. (For SoPure water filter, there is no auxillary faucet and filtered water output is from your existing faucet but water will still flow at almost the same pressure as before. Our technician will check with you on the pressure to be set and seek your approval when doing installation.
