Rinnai Tankless Rinnai 21” Universal Non-Condensing Plastic Horizontal Termination

21” Universal Non-Condensing Plastic Horizontal TerminationRinnai's unique Ubbink concentric venting system provides maximum performance, safety, and ease of installation. Compatible with all indoor Rinnai water heater models, except the 98 series which utilizes separate intake and exhaust venting. Plastic Outer Vent For IntakeEasy To Cut Compared To Stainless SteelDent And Impact ResistantCorrosion-ProofNon-Flammable Material (ul94-V0)Seamless Extruded MaterialsCasted Elbows And AdaptersWhite Semi-Gloss...