Delight in cleaner， refreshing water with the PUR 4-Stage Quick-Connect Reverse Osmosis (RO) Water Filtration System. This 4-stage under sink RO water filter system delivers more purified water through a secondary air gap faucet. Forget bottled water and opt for an environmentally sound water filtration system that is NSF certified to reduce at least 15 unwanted contaminants including lead， TDS and heavy metals. During stage 1， the 5 micron sediment filter reduces rust， sand and dirt. In stage 2， water flows through a 5 micron carbon block filter to further reduce particulates， as well as chlorine. In stage 3， the RO membrane further filters the water to less than 0.0001 micron， thereby reducing chemical contaminants and improving the safety of your drinking water. During the final 4th stage， a secondary carbon block filter removes any residual taste that may come from the storage tank. The no hassle quick-connect design makes replacing the filters easy with a simple flip of a switch and twist of the wrist. For optimum water filtration system maintenance， replace the sediment and carbon block filters every six months and the RO membrane every two years. This water filtration system features a compact， space-saving design that includes everything you need to get started with the for quick and easy installation.

Enjoy cleaner， refreshing and safer drinking water straight from a dedicated air gap faucet with the PUR 4-Stage Under Sink Universal Reverse Osmosis (RO) Water Filtration System

NSF/ANSI Standard 58 and CSA B483.1 certified to reduce multiple contaminants including lead， TDS and heavy metals

Water Filter System includes air gap faucet， 1 sediment filter， 1 carbon block filter， RO membrane， GAC polishing filter， pressurized storage tank， tubing and installation components

Bracket-mounted design saves space under your counter or sink

Water Filtration System tested and certified to 23.3 gpd of filtered water

Purchase replacement water filter kit PUN4ROKIT for best system maintenance after 6 months

Replace RO membrane PUNROM after 24 months

Genuine PUR water filters are the only water filters certified for use in PUR water filtration systems

Easy to follow installation manual included

Bracketed System Dimensions: 15 in. L x 5.5 in. W x 17.5 in. H