As an Amazon Associate, we earn from qualifying purchases. A.O. Smith . 100121461 A.O. Smith . 100121461 Gallery Attributes Brand name, Manufacturer name, ManufacturerA.O. Smith Attribute00ANSI 5, ANSI Z21.22 Attribute01, Attribute20, Attribute26Yes Attribute02Commercial Attribute03, Attribute15No Attribute04For Sale in CA Attribute05CSA C22.1 Attribute0650 gal Attribute07Enamel Attribute08Gold Series Attribute09Grey Attribute10Greys Attribute1121-3/4 in Attribute12, Attribute13FNPT Attribute1455-3/4 in Attribute16Electronic Ignition Attribute1720.478 Attribute18Glass, Steel Attribute19150 psi Attribute21NSF 5 Attribute223 Attribute23Three Phase Attribute24Electric Attribute251-1/4 in Attribute27, Voltage208V Attribute2841 - 50 gal Attribute29Tall Attribute306 AttributeKey00ANSI Specifications AttributeKey01ASME Specifications AttributeKey02Application AttributeKey03CARB OTC LEED Compliant AttributeKey04CEC Compliant AttributeKey05CSA Certified AttributeKey06Capacity AttributeKey07Coating AttributeKey08Collection AttributeKey09Color Finish AttributeKey10Color Finish Category AttributeKey11, length_Attrib, width_AttribDiameter AttributeKey12End Connection 1 AttributeKey13End Connections AttributeKey14, height_AttribHeight AttributeKey15IAPMO Listed AttributeKey16Ignition System AttributeKey17MBH AttributeKey18Material AttributeKey19Maximum Pressure AttributeKey20NSF Certified AttributeKey21NSF Specifications AttributeKey22Number Of Elements AttributeKey23Phase AttributeKey24Power Source AttributeKey25Supply Pipe Connection AttributeKey26UL Listed AttributeKey27Volts AttributeKey28Water Heater Capacity Range AttributeKey29Water Heater Type AttributeKey30Watts DimensionUnitinch diameter, length, width21.75 height55.75 moq, multiple1 MPN100121461 qtyInStockCall for Availability SKU3355811 Distributor offers SellerSKUMOQIn stockMultiplePrices ferguson.com33558111Call for Availability1