As an Amazon Associate, we earn from qualifying purchases. A.O. Smith . 100120558 A.O. Smith . 100120558 Gallery Attributes Brand name, Manufacturer name, ManufacturerA.O. Smith Attribute0018.8 Attribute01ANSI Z21.22 Attribute02, Attribute12, Attribute14No Attribute03For Sale in CA Attribute04CSA C22.1 Attribute0550 gal Attribute06Gold Xi™ Attribute07Grey Attribute08Greys Attribute0921-3/4 in Attribute10, Attribute11NPT Attribute1355-1/4 in Attribute15Electronic Ignition Attribute1630.7 Attribute17Aluminum, Glass, Steel Attribute18150 psi Attribute19190 Attribute20, Attribute26Yes Attribute213 Attribute22Single Phase Attribute23Electric Attribute241-1/4 in Attribute2590 to 190 Deg F Attribute27, Voltage480V Attribute2841 - 50 gal Attribute29Tall Attribute309 AttributeKey00AMP AttributeKey01ANSI Specifications AttributeKey02CARB OTC LEED Compliant AttributeKey03CEC Compliant AttributeKey04CSA Certified AttributeKey05Capacity 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 AttributeKey16MBH AttributeKey17Material AttributeKey18Maximum Pressure AttributeKey19Maximum Temperature AttributeKey20NSF Certified AttributeKey21Number Of Elements AttributeKey22Phase AttributeKey23Power Source AttributeKey24Supply Pipe Connection AttributeKey25Temperature Range AttributeKey26UL Listed AttributeKey27Volts AttributeKey28Water Heater Capacity Range AttributeKey29Water Heater Type AttributeKey30Watts DimensionUnitinch diameter, length, width21.75 height55.25 moq, multiple1 MPN100120558 qtyInStockCall for Availability SKU3102426 Distributor offers SellerSKUMOQIn stockMultiplePrices ferguson.com31024261Call for Availability1