Rinnai 224260 Concentric Non-Condensing Vent Pipe Extension, 10"
Concentric ventilation system for Rinnai tankless water heaters
Rinnai's unique Ubbink concentric venting system is easy to install and offers nothing but the best in performance and safety. Compatible with all indoor Rinnai water heaters, except the 98 series which uses separate intake and exhaust vents.
Metal outer vent for intake
• Galvanized steel
Aluminum inner vent for exhaust
• Stable, thick-walled material
Available concentric water heater vent fittings