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The Rinnai 224054 telescoping vent extension is made of plastic and aluminum and adjustable from 2-1/4 to 12 inches. This vent length is used for venting Rinnai LSi & RCi series tankless water heaters and A.O. Smith ATI-305 & ATI-505 on-demand tankless water heaters which utilize separate intake and exhaust venting.
This telescoping vent length is compatible with Rinnai non-condensing tankless water heaters and features an inner metal vent for exhaust gases and an outer plastic vent for air intake.
We pulled together the parts most installs need for this unit, plus a few add-ons worth a look. Check what you need — nothing here blocks checkout.
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