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EZ-Fluid 1-1/2-Inch FIP x 1-1/2-Inch FIP, 18-Inch Corrugated Flexible Stainless Steel Water Heater Connector For Female Iron Water Pipes Fitting Also For Water softener,Filter (1) - Amazon.com
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SHANOER Boiler Water Heater Stainless Steel Elbow Vent Pipe For Gas Water Heater Diameter:6cm/2.36inch 90 Degree - Amazon.com
WEBSTONE, Brass, 398 to 500 psi Pressure Range, Tankless Water Heater Service Valve - 40L227|44443WPR - Grainger
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2015 International Residential Code and Commentary, Volume 2 (IRC) - Chapter 28: Water Heaters - P2801.6 Required pan .
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