Product details:
The Rinnai 224080PP Concentric Venting Condensing Vent Pipe Extension is an additional component of a Concentric Venting accessory. A Concentric Venting accessory is frequently used to turn a two-vent system into a single exiting vent. It also slightly warms the air before it reaches the heating part of your Rinnai Tankless Water Heater. This accessory is specifically design for Rinnai's Condensing Tankless Water Heaters.Engineered especially for gas appliance venting
Positive fit and lock allows for installation assurance
Two layers of pipe equals two layers of protection
Seals at every joint expand and contract with weather and temperature changes, so there's no flexing or cracking in the venting
No flammable, messy or harmful glues, cements, or solvents are used
