Rinnai 19.5 in. Non-Condensing Venting Pipe Extension

19.5 in. vent pipe extension is compatible with all indoor Rinnai water heater models except the R98 series which utilizes separate intake and exhaust venting. Easy installation. Zero clearance to combustibles. Used for venting series tankless water heaters which utilize separate intake and exhaust venting.|Concentric venting reduces install time and costs|Engineered concentric venting especially for gas appliances|Easy assembly/adjustment|Concentric venting allows for secure connection|Roof discharge termination 18 in. (above roof)|HE series tankless water heaters (non-condensing)|White finish|Package quantity: 1|Plastic construction|1-year limited warranty