As an Amazon Associate, we earn from qualifying purchases. A.O. Smith . 100279556 A.O. Smith . 100279556 Gallery Attributes Brand name, Manufacturer name, ManufacturerA.O. Smith Attribute0096.00 Attribute01ANSI Z21.10.3 Attribute02Residential Attribute03100000 Attribute04For Sale in CA Attribute05CSA 4.3 Attribute0634 gal Attribute07Polaris™ Attribute0822 in Attribute09, Attribute14, Attribute23No Attribute10Ultra Low Nox Attribute11, Attribute12, Attribute13NPT Attribute15170 Attribute16Natural Gas Attribute1748-1/2 in Attribute18100 Attribute19Stainless Steel Attribute20444 Attribute21Gas Attribute221 in Attribute240.9 Attribute25Power Direct Vent Attribute26Top Attribute2730 - 40 gal Attribute28Tall AttributeKey00AFUE AttributeKey01ANSI Specifications AttributeKey02Application AttributeKey03BTU AttributeKey04CEC Compliant AttributeKey05CSA Certified AttributeKey06Capacity AttributeKey07Collection AttributeKey08, length_Attrib, width_AttribDiameter AttributeKey09ETL Listed AttributeKey10Emission AttributeKey11End Connection 1 AttributeKey12End Connection 2 AttributeKey13End Connections AttributeKey14Energy Star Compliant AttributeKey15First Hour Rating AttributeKey16Fuel Type AttributeKey17, height_AttribHeight AttributeKey18MBH AttributeKey19Material AttributeKey20Material Type AttributeKey21Power Source AttributeKey22Supply Pipe Connection AttributeKey23UL Listed AttributeKey24Uniform Energy Factor UEF AttributeKey25Vent Type AttributeKey26Water Connections AttributeKey27Water Heater Capacity Range AttributeKey28Water Heater Type DimensionUnitinch diameter, length, width22.0 height48.5 moq, multiple, tierMinQty11 MPN100279556 qtyInStock-2 SKU7314153 tierPrice14586.76 Distributor offers SellerSKUMOQIn stockMultiplePrices ferguson.com73141531-211 @ $4586.76