3 in. / 5 in. x 19.5 in. Plastic Condensing Vent Pipe Extension for Rinnai Super High Efficiency Tankless Water Heaters 30-Inch-Vanities NSF/ANSI Standard 61 and 372

NSF/ANSI Standard 61 and 372 certified by IAPMO

it's waterproof

31 Manufacturer Warranty 1 Year Limited

and can be used with any type of standard plumbing system and comes with a 10 year warranty

0625 Cut-Out Width (in

3 in. / 5 in. x 19.5 in. Plastic Condensing Vent Pipe Extension for Rinnai Super High Efficiency Tankless Water Heaters 30-Inch-Vanities NSF/ANSI Standard 61 and 372Precisely engineered accessories can add even more reliability, convenience and flexibility to Rinnai Tankless Water Heaters. With Rinnai Common Venting, up to eight tankless water heater units share the same vent system. This allows for significantly fewer wall or roof cuts, less labor, and longer vent lengths than ever possible with single unit tankless water heater venting. California residents see Prop 65 WARNINGS Concentric venting reduces