Rinnai 224053 Concentric Vent Pipe Extension, 39"

Concentric ventilation system for Rinnai tankless water heaters Rinnai's unique concentric venting system offers maximum performance, safety, while maintaining ease of installation. It's compatible with all indoor Rinnai water heaters, except the 98 series which uese separate intake and exhaust vents. Features • GSA Approved • Easy Assembly • Can be Cut To Size • Zero Clearance To Combustibles • Professional Installation Recommended • Elbow might be required for venting applications • Compatible with all indoor Rinnai water heaters except the R98 Series Plastic Outer Vent For Intake • Corrosion-Proof • Dent And Impact Resistant • Casted Elbows And Adapters • Seamless Extruded Materials • Non-Flammable Material (UL94-V0) • White Semi-Gloss Finish (EU RAL 9016) • Easier To Cut Compared To Stainless Steel Aluminum Inner Vent For Exhaust • Lightweight • No weld lines • Not affected by scratches • Dent and crease tesistant • Seamless extruded material • Stable, thick-walled material • Thick