Rinnai 224051 Concentric 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.
Plastic outer vent for intake
• Dent and impact resistant
Aluminum inner vent for exhaust
• Stable, thick-walled material
• GSA approved
Available concentric water heater vent fittings