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Ships within 48 hours · Estimated delivery Aug 22 - Aug 27
RU300C18-UV or RU400T35-UV system (all with white canister housings) were last shipped in 2012 have exceeded their useful life
water hardness that is 30 grains (~500mg/l) and higher
see the EWS Series or CWL Series
CLICK HERE to View the EWS Heater Guard PDF
Environmental Water Systems has engineered the highest quality
Complete Filter Set for ESSENTIAL Drinking Water System (Filter Set #: F.SET DWS) Heater Guard RU300C18-UV or RU400T35-UV system (allFilter Replacement Set for Environmental Water Systems ESSENTIAL Drinking Water System Filters Included in This Set: F PRESED, F GAC, F GAC B Description: 5 micron pre sediment filter, advanced granular activated carbon filter, advanced carbon block filter Replacement Schedule: up to 1 year, not to exceed 1 year EWS uses full size, USA made, full bed depth, highest grade filters for optimum performance and longer filter life.
