As an Amazon Associate, we earn from qualifying purchases. A.O. Smith . 100323457 A.O. Smith . 100323457 Gallery Attributes Brand name, Manufacturer name, ManufacturerA.O. Smith Attribute00ANSI Z21.10.1 Attribute01Residential Attribute0232000 Attribute03CSA 4.1 Attribute0430 gal Attribute05ProLine® Attribute0620 in Attribute07Bottom Attribute08Brass Attribute09, Attribute14, Attribute32No Attribute10Low Nox Attribute11, Attribute12, Attribute13NPT Attribute1555 Attribute16, Attribute17, Attribute183/4 in Attribute19Natural Gas Attribute2050-1/4 in Attribute21Push Button Spark Ignition Attribute22Vertical Mount Attribute23Blue Diamond® Glass Attribute2432 Attribute25Aluminum, Glass, Stainless Steel Attribute26Polymer Attribute27150 psi Attribute28155 Attribute29Gas Attribute301/2 in Attribute31Up to 155 Deg F Attribute330.6 Attribute34Atmospheric Vent Attribute35Top Attribute3630 - 40 gal Attribute37Short AttributeKey00ANSI Specifications AttributeKey01Application AttributeKey02BTU AttributeKey03CSA Certified AttributeKey04Capacity AttributeKey05Collection AttributeKey06, length_Attrib, width_AttribDiameter AttributeKey07Drain Location AttributeKey08Drain Valve Material AttributeKey09ETL Listed AttributeKey10Emission AttributeKey11End Connection 1 AttributeKey12End Connection 2 AttributeKey13End Connections AttributeKey14Energy Star Compliant AttributeKey15First Hour Rating AttributeKey16Fitting Size 1 AttributeKey17Fitting Size 2 AttributeKey18Fitting Sizes AttributeKey19Fuel Type AttributeKey20, height_AttribHeight AttributeKey21Ignition System AttributeKey22Installation Type AttributeKey23Lining of Tank AttributeKey24MBH AttributeKey25Material AttributeKey26Material Type AttributeKey27Maximum Pressure AttributeKey28Maximum Temperature AttributeKey29Power Source AttributeKey30Supply Pipe Connection AttributeKey31Temperature Range AttributeKey32UL Listed AttributeKey33Uniform Energy Factor UEF AttributeKey34Vent Type AttributeKey35Water Connections AttributeKey36Water Heater Capacity Range AttributeKey37Water Heater Type DimensionUnitinch diameter, length, width20.0 height50.25 moq, multiple1 MPN100323457 qtyInStockCall for Availability SKU8155302 Distributor offers SellerSKUMOQIn stockMultiplePrices ferguson.com81553021Call for Availability1