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The Rinnai ARR37-331 pilot orifice is designed for LP 0.21 applications. This pilot orifice is a constant component and an original part manufactured by Rinnai. It is suitable for various models. This part ensures warranty / agency compliance and best performance.
The Rinnai ARR37-331 pilot orifice is a constant component designed for LP 0.21 applications and ensures optimal performance.
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