As an Amazon Associate, we earn from qualifying purchases. A.O. Smith . 100330723 A.O. Smith . 100330723 Gallery Attributes Brand name, Manufacturer name, ManufacturerA.O. Smith Attribute00ANSI Z21.10.1 Attribute01Residential Attribute0240000 Attribute03CSA 4.1 Attribute0440 gal Attribute05ProLine® Master Attribute0618 in Attribute07Brass Attribute08, Attribute10, Attribute25No Attribute09Ultra Low Nox Attribute1183 Attribute1241 gph Attribute13Natural Gas Attribute1462 in Attribute15150 Attribute16Push Button Spark Ignition Attribute17Blue Diamond® Glass Attribute1840 Attribute19Magnesium, Stainless Steel Attribute20Polymer Attribute21300 psi Attribute22Domestic Attribute23Gas Attribute241/2 in Attribute260.64 Attribute27Atmospheric Vent Attribute28Top Attribute2930 - 40 gal Attribute30Tall AttributeKey00ANSI Specifications AttributeKey01Application AttributeKey02BTU AttributeKey03CSA Certified AttributeKey04Capacity AttributeKey05Collection AttributeKey06, length_Attrib, width_AttribDiameter AttributeKey07Drain Valve Material AttributeKey08ETL Listed AttributeKey09Emission AttributeKey10Energy Star Compliant AttributeKey11First Hour Rating AttributeKey12Flow Rate AttributeKey13Fuel Type AttributeKey14, height_AttribHeight AttributeKey15High Pressure AttributeKey16Ignition System AttributeKey17Lining of Tank AttributeKey18MBH AttributeKey19Material AttributeKey20Material Type AttributeKey21Maximum Pressure AttributeKey22Origin AttributeKey23Power Source AttributeKey24Supply Pipe Connection AttributeKey25UL Listed AttributeKey26Uniform Energy Factor UEF AttributeKey27Vent Type AttributeKey28Water Connections AttributeKey29Water Heater Capacity Range AttributeKey30Water Heater Type DimensionUnitinch diameter, length, width18.0 height62.0 moq, multiple1 MPN100330723 qtyInStockCall for Availability SKU7305975 Distributor offers SellerSKUMOQIn stockMultiplePrices ferguson.com73059751Call for Availability1