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The Rinnai 229310NPP 39 in Condensing Vent Extension Piece, 2x4 Concentric. This vent extension piece is compatible with Rinnai Condensing Tankless Water Heaters including RU199i, RU180i, RU160i, RU130i, RUR199i, RUR160i, CU199i, and CU160i. Vent components consist of an outer vent for air intake (4 in.) and an inner vent for the exhaust gases (2 in.).
The Rinnai condensing vent extension piece delivers a professional solution with improved safety and convenience. It is an excellent alternative to PVC, with no solvents and fewer stress fractures.
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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