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Ships within 48 hours · Estimated delivery Aug 17 - Aug 22
Inlets: (2) 2-1/2" Female NST (National Standard Thread)
000 BTU — delivers hot water for multiple applications Installation Outdoor-only unit — no need for venting infrastructure ComfortFlow® System Integrated pump and buffer tank for faster hot water Heat Exchanger & Burner Made of corrosion-resistant stainless steel for long life Energy Efficiency 0
non-flexing pipe connection ideal for high-demand systems like fire protection mains
offering immediate protection against gas leaks and fire hazards in residential
4" Grooved 90° Long Radius Elbow – Ductile Iron, UL/FM Approved Ultra-Low NOx Inlets: (2) 2-1/2" Female NST4" Grooved 90 Long Radius Elbow Ductile Iron The 4 inch grooved 90 degree long radius elbow is built for high performance fire protection and mechanical piping systems where smooth directional changes are essential. Designed with a gentle 1. 5D sweep, this fitting helps maintain flow efficiency, reduce pressure drop, and minimize stress on the system. Why Use a Long Radius Elbow? Compared to short radius fittings, a long radius elbow offers a broader
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