Dual pane windows here for 10+ years full time. Right now I am looking at my outside thermometer and it is 28 degrees and not this morning or anytime in the past 10+ years have I ever had condensation on an inside window. That alone makes them worth it for me.
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Ed
KM4STL
2006 GMC 2500HD CCSB 4x4 Duramax/Allison, Titan 52 gallon fuel tank, Prodigy Controller, B&W Companion Hitch
2010 Jayco Designer 35RLTS, Cummins/Onan RV QG 5500 EVAP, Progressive Industries EMS-PT50X, TST Systems 507 TPMS, RV Flex Armor Roof
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