Rinnai 224052 Non-Condensing Vent Pipe Extension 19.5"
Brand: Rinnai

This 19.5" vent pipe extension is compatible with all indoor Rinnai water heater models except the R98 series which utilizes separate intake and exhaust venting.

Easy Assembly
Zero clearance to combustibles
Used for venting series tankless water heaters which utilize separate intake and exhaust venting