As an Amazon Associate, we earn from qualifying purchases. A.O. Smith . 100304638 A.O. Smith . 100304638 Gallery Attributes Brand name, Manufacturer name, ManufacturerA.O. Smith Attribute00ANSI Z21.10.1, ANSI Z21.10.3 Attribute01Residential Attribute0245000 Attribute03For Sale in CA Attribute04CSA 4.1, CSA 4.3 Attribute0550 gal Attribute06ProLine® XE Attribute0722 in Attribute08Bottom Attribute091 in Attribute10Brass Attribute11, Attribute34No Attribute12Reduced Nox Attribute13, Attribute14, Attribute15NPT Attribute16Yes Attribute1793 Attribute1850.3 gph Attribute19Natural Gas Attribute20Energy Star, Yes Attribute2167-1/2 in Attribute22150 Attribute23Hot Surface Ignition Attribute24Vertical Mount Attribute25Blue Diamond® Glass Attribute2645 Attribute27Aluminum Attribute28Polymer Attribute29150 psi Attribute30155 Attribute31Gas Attribute323/4 in Attribute33Up to 155 Deg F Attribute350.7 Attribute36Power Direct Vent Attribute37, Voltage125V Attribute38Top Attribute3941 - 50 gal Attribute40Tall AttributeKey00ANSI Specifications AttributeKey01Application AttributeKey02BTU AttributeKey03CEC Compliant AttributeKey04CSA Certified AttributeKey05Capacity AttributeKey06Collection AttributeKey07, length_Attrib, width_AttribDiameter AttributeKey08Drain Location AttributeKey09Drain Opening AttributeKey10Drain Valve Material AttributeKey11ETL Listed AttributeKey12Emission AttributeKey13End Connection 1 AttributeKey14End Connection 2 AttributeKey15End Connections AttributeKey16Energy Star Compliant AttributeKey17First Hour Rating AttributeKey18Flow Rate AttributeKey19Fuel Type AttributeKey20Green AttributeKey21, height_AttribHeight AttributeKey22High Pressure AttributeKey23Ignition System AttributeKey24Installation Type AttributeKey25Lining of Tank AttributeKey26MBH AttributeKey27Material AttributeKey28Material Type AttributeKey29Maximum Pressure AttributeKey30Maximum Temperature AttributeKey31Power Source AttributeKey32Supply Pipe Connection AttributeKey33Temperature Range AttributeKey34UL Listed AttributeKey35Uniform Energy Factor UEF AttributeKey36Vent Type AttributeKey37Volts AttributeKey38Water Connections AttributeKey39Water Heater Capacity Range AttributeKey40Water Heater Type DimensionUnitinch diameter, length, width22.0 height67.5 moq, multiple1 MPN100304638 qtyInStockCall for Availability SKU2038031 Distributor offers SellerSKUMOQIn stockMultiplePrices ferguson.com20380311Call for Availability1