As an Amazon Associate, we earn from qualifying purchases. A.O. Smith . 100233988 A.O. Smith . 100233988 Gallery Attributes Brand name, Manufacturer name, ManufacturerA.O. Smith Attribute00ANSI Z21.10.1 Attribute01Residential Attribute0250000 Attribute03, Attribute11, Attribute16, Attribute20, Attribute28, Attribute32No Attribute04CSA 4.1 Attribute0550 gal Attribute06Blue Diamond® Glass Coating Attribute07ProLine® Attribute0822 in Attribute09Bottom Attribute10Brass Attribute12Low Nox Attribute13, Attribute14, Attribute15NPT Attribute1792 Attribute18Natural Gas Attribute1960-3/4 in Attribute21Piezo Igniter Attribute22Vertical Mount Attribute2350 Attribute24Glass, Magnesium, Stainless Steel Attribute25Polymer Attribute26150 psi Attribute27155 Attribute29Gas Attribute303/4 in Attribute31Up to 155 Deg F Attribute330.6 Attribute34Atmospheric Vent Attribute35Top Attribute3641 - 50 gal Attribute37Tall AttributeKey00ANSI Specifications AttributeKey01Application AttributeKey02BTU AttributeKey03CARB OTC LEED Compliant AttributeKey04CSA Certified AttributeKey05Capacity AttributeKey06Coating AttributeKey07Collection AttributeKey08, length_Attrib, width_AttribDiameter AttributeKey09Drain Location AttributeKey10Drain Valve Material AttributeKey11ETL Listed AttributeKey12Emission AttributeKey13End Connection 1 AttributeKey14End Connection 2 AttributeKey15End Connections AttributeKey16Energy Star Compliant AttributeKey17First Hour Rating AttributeKey18Fuel Type AttributeKey19, height_AttribHeight AttributeKey20IAPMO Listed AttributeKey21Ignition System AttributeKey22Installation Type AttributeKey23MBH AttributeKey24Material AttributeKey25Material Type AttributeKey26Maximum Pressure AttributeKey27Maximum Temperature AttributeKey28NSF Certified 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, width22.0 height60.75 moq, multiple1 MPN100233988 qtyInStockCall for Availability SKU7166028 Distributor offers SellerSKUMOQIn stockMultiplePrices ferguson.com71660281Call for Availability1