Rinnai 2″x4″ Polypropylene Roof Termination Extension Kit PPTL MFG# 185348NPP

Overview

Rinnai Polypropylene Venting – 2” x 4” Roof Termination Extension Kit (PPTL)This Rinnai 2" x 4" Polypropylene Roof Termination Extension Kit is designed for use with Rinnai’s high-efficiency tankless water heater venting systems. Constructed from durable polypropylene (PPTL), this extension kit provides a corrosion-resistant, high-temperature pathway for exhaust and intake air through roof penetrations.

Perfect for installations requiring additional vertical vent length, this extension ensures safe appliance operation and compliance with Rinnai venting guidelines.

Key Features

Designed for Rinnai tankless water heaters using PPTL venting2" x 4" roof termination for safe exhaust dischargeMolded polypropylene is corrosion-proof and heat-resistantLightweight, easy to install, and compatible with standard Rinnai vent components

Ideal for replacement vent kits or extended roof penetrationsEnsures proper airflow and combustion with high-efficiency modelsSpecifications

Material: Polypropylene

Connection: 2" x 4" venting

Model: Roof Termination Extension KitManufacturer Number: MFG# 185348NPPDLP Number: 11H2775This kit is essential for installers upgrading or extending Rinnai direct-vent systems, ensuring safe, efficient, and code-compliant operation.

Product details

Part / SKU	185348NPP

Package includes

• Rinnai 2"x4" Polypropylene Roof Termination Extension Kit PPTL MFG# 185348NPP

Included components and any stated pack quantity are as described in this listing. Optional accessories shown separately are sold separately unless expressly included above.