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            Box #3, Right JM42/50 - J5326Lennox$391.57Box #3, Right JM42/50 for various IHP heating units. Genuine OEM part May fit other models, please check your owner's manual for part number compatibility.
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            Box #3, Right GM36H - J5115Lennox$341.10Box #3, Right GM36H for various IHP heating units. Genuine OEM part May fit other models, please check your owner's manual for part number compatibility.
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            Box #2, Rear JM50 - J5328Lennox$308.43Box #2, Rear JM50 for various IHP heating units. Genuine OEM part May fit other models, please check your owner's manual for part number compatibility.
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            Bottom, Fireplace 36" Common - J3945Lennox$62.85Bottom, Fireplace 36" Common for various IHP heating units. Genuine OEM part May fit other models, please check your owner's manual for part number compatibility.
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            Bottom, Firebox Painted - J3809Lennox$417.74Bottom, Firebox Painted for various IHP heating units. Genuine OEM part May fit other models, please check your owner's manual for part number compatibility.
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            Bottom, Firebox B36 & B36L - J3989Lennox$417.74Bottom, Firebox B36 & B36L for various IHP heating units. Genuine OEM part May fit other models, please check your owner's manual for part number compatibility.
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            Bottom Support Fin - Steel Support at Bottom 72" FP - F3465Lennox$261.70Bottom Support Fin - Steel Support at Bottom 72" FP for various IHP heating units. Genuine OEM part May fit other models, please check your owner's manual for part number compatibility.
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            Bottom Support Fin - Steel Support at Bottom 60" FP - F3464Lennox$214.97Bottom Support Fin - Steel Support at Bottom 60" FP for various IHP heating units. Genuine OEM part May fit other models, please check your owner's manual for part number compatibility.
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            Bottom Support Fin - Steel Support at Bottom 48" FP - F3463Lennox$169.80Bottom Support Fin - Steel Support at Bottom 48" FP for various IHP heating units. Genuine OEM part May fit other models, please check your owner's manual for part number compatibility.
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            Bottom Support Fin - Steel Support at Bottom 36" FP - F3462Lennox$145.05Bottom Support Fin - Steel Support at Bottom 36" FP for various IHP heating units. Genuine OEM part May fit other models, please check your owner's manual for part number compatibility.
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            Bottom Refractory-Builder - H3240Lennox$653.82Bottom Refractory-Builder for various IHP heating units. Genuine OEM part May fit other models, please check your owner's manual for part number compatibility.
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            Bottom Refractory SB42 - PR-SB128Lennox$497.24Bottom Refractory SB42 for various IHP heating units. Genuine OEM part May fit other models, please check your owner's manual for part number compatibility.
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            Bottom Refractory ME CAT - F3020Lennox$602.60Bottom Refractory ME CAT for various IHP heating units. Genuine OEM part May fit other models, please check your owner's manual for part number compatibility.
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            Bottom Refractory Laval - PR-SR2692Lennox$497.24Bottom Refractory Laval for various IHP heating units. Genuine OEM part May fit other models, please check your owner's manual for part number compatibility.
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            Bottom Refractory Assembly 43 (49042) - 16M57Lennox$653.82Bottom Refractory Assembly 43 (49042) for various IHP heating units. Genuine OEM part May fit other models, please check your owner's manual for part number compatibility.
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            Bottom Refractory Assembly [49041] - H3049Lennox$653.82Bottom Refractory Assembly [49041] for various IHP heating units. Genuine OEM part May fit other models, please check your owner's manual for part number compatibility.
