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The Rinnai 224045 wall thimble adjustable is designed for new construction. This thimble, adjustable to 17 x 9-1/2 inches, fits 2x4 or 2x6 inch wall constructions. It supports ease of installation for Rinnai water heater and boiler applications in sidewall venting. Compatible with indoor Rinnai water heater models.
The Rinnai wall thimble is for water heater and boiler applications. It is used in sidewall venting for external termination.
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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