As an Amazon Associate, we earn from qualifying purchases. A.O. Smith . 100121354 A.O. Smith . 100121354 Gallery Attributes Brand name, Manufacturer name, ManufacturerA.O. Smith Attribute00ANSI Z21.22 Attribute01, Attribute12, Attribute14, Attribute24No Attribute02For Sale in CA Attribute03CSA C22.1 Attribute0450 gal Attribute05Enamel Attribute06Dura-Power™ Attribute07Grey Attribute08Greys Attribute0921-3/4 in Attribute10, Attribute11NPT Attribute1355-3/4 in Attribute15Electric Ignition Attribute16Glass, Steel Attribute17150 psi Attribute18Yes Attribute193 Attribute20Three Phase Attribute21Electric Attribute221-1/4 in Attribute231400 to 1600 Deg F Attribute25, Voltage480V Attribute2641 - 50 gal Attribute27Tall Attribute2812 AttributeKey00ANSI Specifications AttributeKey01CARB OTC LEED Compliant AttributeKey02CEC Compliant AttributeKey03CSA Certified AttributeKey04Capacity AttributeKey05Coating AttributeKey06Collection AttributeKey07Color Finish AttributeKey08Color Finish Category AttributeKey09, length_Attrib, width_AttribDiameter AttributeKey10End Connection 1 AttributeKey11End Connections AttributeKey12Energy Star Compliant AttributeKey13, height_AttribHeight AttributeKey14IAPMO Listed AttributeKey15Ignition System AttributeKey16Material AttributeKey17Maximum Pressure AttributeKey18NSF Certified AttributeKey19Number Of Elements AttributeKey20Phase AttributeKey21Power Source AttributeKey22Supply Pipe Connection AttributeKey23Temperature Range AttributeKey24UL Listed AttributeKey25Volts AttributeKey26Water Heater Capacity Range AttributeKey27Water Heater Type AttributeKey28Watts DimensionUnitinch diameter, length, width21.75 height55.75 moq, multiple1 MPN100121354 qtyInStockCall for Availability SKU1796036 Distributor offers SellerSKUMOQIn stockMultiplePrices ferguson.com17960361Call for Availability1