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XCV-40 - AO Smith XCV-40 - 40 Gallon ProMax 10 Yr Warranty Residential Gas Water Heater - Tall Model
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AO Smith 40 Gallon - 36,000 BTU ProLine Plus High Efficiency Residential Gas Water Heater - Tall Model, LP Gas (10 Yr Warranty) - Amazon.com
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A.O. Smith Signature 100 40-Gallon Short 6-year Limited 40000-BTU Natural Gas Water Heater in the Water Heaters department at Lowes.com
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GCRL40 by A. O. Smith - ProLine® 40-Gallon Atmospheric Vent Short Natural Gas Water Heater | Bitter Neumann
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AO Smith 100158802 GCB-40 Proline 40 Gallon Tall Residential Natural Gas Water Heater - Atmoshperic Vent - 6 Year Warranty | AF Supply
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