As an Amazon Associate, we earn from qualifying purchases. A.O. Smith . 100210381 A.O. Smith . 100210381 Gallery Attributes Brand name, Manufacturer name, ManufacturerA.O. Smith Attribute00ANSI Z21.10.1 Attribute01Residential Attribute0240000 Attribute03For Sale in CA Attribute04CSA 4.1 Attribute0540 gal Attribute06ProLine® Attribute0718 in Attribute08Bottom Attribute09Brass Attribute10, Attribute15, Attribute34No Attribute11Low Nox Attribute12, Attribute13, Attribute14NPT Attribute1678 Attribute17, Attribute18, Attribute193/4 in Attribute20Natural Gas Attribute2161-3/4 in Attribute22150 Attribute23Push Button Spark Ignition Attribute24Vertical Mount Attribute25Blue Diamond® Glass Attribute2640 Attribute27Aluminum, Stainless Steel Attribute28Polymer Attribute29300 psi Attribute30155 Attribute31Gas Attribute321/2 in Attribute33Up to 155 Deg F Attribute350.65 Attribute36Atmospheric Vent Attribute37Top Attribute3830 - 40 gal Attribute39Tall AttributeKey00ANSI Specifications AttributeKey01Application AttributeKey02BTU AttributeKey03CEC Compliant AttributeKey04CSA Certified AttributeKey05Capacity AttributeKey06Collection AttributeKey07, length_Attrib, width_AttribDiameter AttributeKey08Drain Location AttributeKey09Drain Valve Material AttributeKey10ETL Listed AttributeKey11Emission AttributeKey12End Connection 1 AttributeKey13End Connection 2 AttributeKey14End Connections AttributeKey15Energy Star Compliant AttributeKey16First Hour Rating AttributeKey17Fitting Size 1 AttributeKey18Fitting Size 2 AttributeKey19Fitting Sizes AttributeKey20Fuel Type 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 AttributeKey37Water Connections AttributeKey38Water Heater Capacity Range AttributeKey39Water Heater Type DimensionUnitinch diameter, length, width18.0 height61.75 moq, multiple1 MPN100210381 qtyInStockCall for Availability SKU5099198 Distributor offers SellerSKUMOQIn stockMultiplePrices ferguson.com50991981Call for Availability1