Rinnai 184127 Concentric Roof Discharge Termination, 18"
Concentric ventilation system for Rinnai tankless water heaters
Rinnai's unique Ubbink concentric venting system offers maximum performance and safety while still being easy to install. Compatible with all indoor Rinnai water heaters, except the 98 series which uses separate intake and exhaust venting.
Metal Outer Vent For Intake
• Galvanized steel
Aluminum Inner Vent For Exhaust
• GSA approved
Available concentric water heater vent fittings