As an Amazon Associate, we earn from qualifying purchases. A.O. Smith . 100122588 A.O. Smith . 100122588 Gallery Attributes Brand name, Manufacturer name, ManufacturerA.O. Smith Attribute00ANSI Z21.10.3 Attribute01Commercial Attribute02120000 Attribute03For Sale in CA Attribute04CSA 4.9 Attribute05Burkay® Attribute06, Attribute17No Attribute07Natural Gas Attribute0849-3/8 in Attribute09Electronic Ignition Attribute10120 MBH Attribute1126-11/16 in Attribute12Copper Attribute13Gas Attribute141-1/4 in Attribute151 in Attribute16AHW120M12N008000 Attribute1820-3/4 in AttributeKey00ANSI Specifications AttributeKey01Application AttributeKey02BTU AttributeKey03CEC Compliant AttributeKey04CSA Certified AttributeKey05Collection AttributeKey06Energy Star Compliant AttributeKey07Fuel Type AttributeKey08, height_AttribHeight AttributeKey09Ignition System AttributeKey10Input MBH AttributeKey11, length_AttribLength AttributeKey12Material AttributeKey13Power Source AttributeKey14Return Pipe Connection AttributeKey15Supply Pipe Connection AttributeKey16Type AttributeKey17UL Listed AttributeKey18, width_AttribWidth DimensionUnitinch height49.375 length26.6875 moq, multiple1 MPN100122588 qtyInStockCall for Availability SKU3976657 width20.75 Distributor offers SellerSKUMOQIn stockMultiplePrices ferguson.com39766571Call for Availability1