As an Amazon Associate, we earn from qualifying purchases. A.O. Smith . 100120557 A.O. Smith . 100120557 Gallery Attributes Brand name, Manufacturer name, ManufacturerA.O. Smith Attribute00, Attribute09, Attribute11, Attribute15No Attribute01For Sale in CA Attribute02, Attribute19Yes Attribute0350 gal Attribute04Gold Xi™ Attribute05Grey Attribute0621-3/4 in Attribute07, Attribute08NPT Attribute1055-1/4 in Attribute12Electronic Ignition Attribute13Steel Attribute14150 psi Attribute16Three Phase Attribute17Electric Attribute181-1/4 in Attribute20, Voltage480V Attribute2141 - 50 gal Attribute226 AttributeKey00CARB OTC LEED Compliant AttributeKey01CEC Compliant AttributeKey02CSA Certified AttributeKey03Capacity AttributeKey04Collection AttributeKey05Color Finish AttributeKey06, length_Attrib, width_AttribDiameter AttributeKey07End Connection 1 AttributeKey08End Connections AttributeKey09Energy Star Compliant AttributeKey10, height_AttribHeight AttributeKey11IAPMO Listed AttributeKey12Ignition System AttributeKey13Material AttributeKey14Maximum Pressure AttributeKey15NSF Certified AttributeKey16Phase AttributeKey17Power Source AttributeKey18Supply Pipe Connection AttributeKey19UL Listed AttributeKey20Volts AttributeKey21Water Heater Capacity Range AttributeKey22Watts DimensionUnitinch diameter, length, width21.75 height55.25 moq, multiple1 MPN100120557 qtyInStockCall for Availability SKU2754388 Distributor offers SellerSKUMOQIn stockMultiplePrices ferguson.com27543881Call for Availability1