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The RINNAI 223181 is a water heater vent termination kit. This universal, horizontal kit features a metal inner exhaust and a plastic outer intake. Designed for use on 3 inch/5 inch non-condensing tankless water heater vents and is compatible with HE/HE+ models. The kit size is 11.5 inches.
This termination kit provides a professional venting solution for non-condensing Rinnai tankless water heaters, ensuring efficient and safe operation.
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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