As an Amazon Associate, we earn from qualifying purchases. A.O. Smith . 100123466 A.O. Smith . 100123466 Gallery Attributes Brand name, Manufacturer name, ManufacturerA.O. Smith Attribute000.61 Attribute01ANSI 5, ANSI Z21.10.3 Attribute02Commercial, Residential Attribute03160000 Attribute04, Attribute16, Attribute29, Attribute33No Attribute05For Sale in CA Attribute06CSA 4.3 Attribute07, Attribute13, Attribute20, Attribute31Yes Attribute0811-1/4 in Attribute09Ultra Low Nox Attribute10, Attribute11, Attribute12MNPT Attribute146.6 gpm Attribute15Natural Gas Attribute17Energy Star, Yes Attribute1823-5/8 in Attribute19150 Attribute21Electronic Ignition Attribute22Indoor Attribute2315 Attribute24160 Attribute25Copper, Stainless Steel Attribute26316L Attribute27140 Attribute2899 Attribute30Gas Attribute323/4 in Attribute340.95 Attribute35Power Direct Vent Attribute36, Voltage120V Attribute37High Efficiency, Tankless Attribute38, Weight58 Attribute3917-3/4 in AttributeKey00AMP AttributeKey01ANSI Specifications AttributeKey02Application AttributeKey03BTU AttributeKey04CARB OTC LEED Compliant AttributeKey05CEC Compliant AttributeKey06CSA Certified AttributeKey07Condensing AttributeKey08, length_AttribDepth AttributeKey09Emission AttributeKey10End Connection 1 AttributeKey11End Connection 2 AttributeKey12End Connections AttributeKey13Energy Star Compliant AttributeKey14Flow Rate AttributeKey15Fuel Type AttributeKey16GSA Approved AttributeKey17Green AttributeKey18, height_AttribHeight AttributeKey19High Pressure AttributeKey20IAPMO Listed AttributeKey21Ignition System AttributeKey22Indoor Outdoor AttributeKey23Low Pressure AttributeKey24MBH AttributeKey25Material AttributeKey26Material Type AttributeKey27Maximum Temperature AttributeKey28Minimum Temperature AttributeKey29NSF Certified AttributeKey30Power Source AttributeKey31SCAQMD Compliant AttributeKey32Supply Pipe Connection AttributeKey33UL Listed AttributeKey34Uniform Energy Factor UEF AttributeKey35Vent Type AttributeKey36Volts AttributeKey37Water Heater Type AttributeKey38, Weight_AttribWeight AttributeKey39, width_AttribWidth DimensionUnitinch depth, length11.25 height23.625 moq, multiple, tierMinQty11 MPN100123466 qtyInStock-2 SKU4423855 tierPrice11277.43 width17.75 Distributor offers SellerSKUMOQIn stockMultiplePrices ferguson.com44238551-211 @ $1277.43 HD Supply837718111 @ $1259.62