Rheem - RTG20280-1- 3 in. x 5 in. Horizontal SS Concentric Termination Vent Kit for Mid Efficiency Tankless Gas Water Heaters (RTG20210-1) STPU-3000 BB Bowl configuration: Rounded offset 60/40

Bowl configuration: Rounded offset 60/40 double bowl

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Rinnai RE140eN High Efficiency Outdoor Tankless Water Heater

It must be paired with a control panel and proper electrical protection

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Rheem - RTG20280-1- 3 in. x 5 in. Horizontal SS Concentric Termination Vent Kit for Mid Efficiency Tankless Gas Water Heaters (RTG20210-1) STPU-3000 BB Bowl configuration: Rounded offset 60/40Install Manual This Stainless Steel 3 in. x 5 in. Concentric Direct Vent Termination Kit is designed for use with Rheem EcoSense Mid Efficiency Tankless gas indoor direct vent Units. Made of durable stainless steel, the kit includes the components required to construct a typical through the wall venting with horizontal termination. Stainless steel components 12 in. wall plate included with screws 94 degree elbow included Can be extended for up to 10