Rinnai/Ubbink 12" All-Weather Horizontal Termination (Metal)
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
• GSA approved