
Residential Drinking Water Systems
Residential Drinking Water Systems
PURE WATER
1
8
Note: Do not use with water that is microbiologically unsafe or of unknown quality without adequate disinfection before or after the system.
Systems certified for cyst reduction may be used on disinfected waters that may contain filterable cysts.
Applications
Home,Office,IceMakerKits,
BeverageDispensers,and
more/
Features
•Multi-Stagewaterltration
•Easytoinstall
Dimensions
16"Wx16"Hx6"D
Model PWRO4
4-Stage Reverse Osmosis System
WattsPureWater4-StageReverseOsmosis(RO)Systemisatriedandtruereverseosmosissystem!
WattsPureWater4-StageROSystembeginswithStage1,a5-micronSedimentfilterthattraps
particulatematterlikedirt,rust,sand,siltandsedimentthatwillaffectthetasteandappearanceof
yourwater.Stage2isa5-micronCarbonBlockfilterthatprovidesareductionofchlorine,chloramine
andothermaterialsthatcausebadtasteandodors(thesearecalledPRE-filtersbecausetheyfilterin
frontofthereverseosmosismembrane).Stage3istheheartofthereverseosmosissystem,theRO
Membrane.Thissemi-permeablemembraneis1/10,000ofamicronandwilleffectivelyreduceTDS
(totaldissolvedsolids),sodiumandawiderangeofcontaminantssuchasarsenic,lead,perchlorate,
chromium,copperandradium.Itwillalsoremoveover99.95%cystssuchasgiardiaandcrypto-
sporidium.Stage4isahigh-qualityGACfinalfilter(thisiscalledafinalfilterbecauseitfiltersafterthe
membrane).ThefilteredROwaterpassesthroughthemembraneandentersthestoragetank.When
you'rereadyforuse,itwillleavethestoragetankandpassthroughthisfourthstageonitswayupto
thefaucet.Theendresult—crystalclear,highquality,andgreattastingwater!
Replacement Filter Packs
MODEL NO. FREQUENCY DESCRIPTION
PWFPKSEDCB 6 Months Includes sediment and carbon filter only
PWFPK4RO4 Includes all filters and membrane
PWMEM50 2 - 5 years 50 gpd membrane
PWILGAC10 Annual 10" final in-line filter
Note: Water conditions may require more frequent cartridge replacement
PWRO4
Reverse Osmosis
PWRO4ZRO
Features
•4-StageSystemofFiltration
Stage1:SedimentFilter
removesparticulates
downto1micron
Stage2:CarbonBlockFilter
removeschlorinetaste
andodors
Stage3:AdvancedTFC
Membranerejects
impuritiesdownto
1/10,000thof
amicron
Stage4:ActivatedCarbonFinal
Filterservesasanal
polishtoremoveany
traceresiduals
•Re-useofrinsewater
(nowaste)
•50gallonsperdayTFC
membrane
•UpgradedWattstopmount
faucet
•3-GallonStorageTank
Versatility
•Nofaucetairgapordrain
connectionrequired
•Spacesavingdesign,installs
undersinkorinlimitedspace
•Adapt-A-Valve™easily
connectstowatersource
•Idealforlowpressureorwell
applications
Reliability
•Advanceddesignuses
patentedtechnologyand
high-qualitycomponentsto
ensureyearsofcontinuous
operationswithtrouble-free
performance
•Aswithalloftheproducts
intheWattsfamily,the
ZeroWasteRO
®
isbackedby
Wattsreputationofexcellence
• Economicaland
environmentallyfriendly
•100%Efcient-Nowasted
water
•Savesasmuchas7,000
gallonsperyearinatypical
residentialapplication
•Delivershigh-qualitydrinking
waterforpenniesaday
Dimensions
20"Wx18"Hx6"D
Model PWRO4ZRO
ZRO-4 ZeroWaste
®
Reverse Osmosis System
TheallnewpatentedZeroWaste
®
Point-of-UseReverseOsmosis(RO)Systemisthefirsteverthat
wastesnowater.Comparablesystemstypicallywasteupto4-12gallonsofROwaterforeverygallon
ofROwaterproduced.ThishighlyefficientWattsROsystemprovidesbetter-than-bottledwaterqual-
ityforresidentialapplications.
For additional information, access online literature ES-WQ-PWRO4ZRO.
SystemtestedandcertiedbyNSFInternational
againstNSF/ANSIStandard58forthereduction
oftheclaimsspeciedontheperformancedata
sheet.
Replacement Filter Packs
MODEL NO. FREQUENCY DESCRIPTION
PWFPKSEDCB 6 Months Includes sediment and carbon filter only
PWFPK4RO4 Includes all filters and membrane
PWMEM50 2 - 5 years 50 gallon per day membrane
PWILGAC10 Annually 10" final in-line filter
Note: Water conditions may require more frequent cartridge replacement
For additional information, access online literature ES-WQ-PWRO4.
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