Centrotherm isagl0303-12 Pvc to Pp Appliance Adapter 3 in

Product Description

The CENTROTHERM isagl0303-12 is a single-wall appliance adapter designed to transition a PVC flue collar to a polypropylene (PP) venting system. It is part of the InnoFlue product line and is used at the boiler or appliance connection point where the flue collar material differs from the downstream vent system. The adapter ships with an integrated gasket that forms an airtight seal without the need for glues, primers, or solvents. Rated to 230 degrees F (110 degrees C), this adapter is evaluated to UL1738 and ULCS636 by ICC, meeting the certification requirements for residential and light-commercial venting applications. Licensed HVAC technicians and plumbers are the primary installers.

The isagl0303-12 is approved by appliance manufacturers for use on specific makes and models of furnaces, water heaters, and boilers that require a transition from a PVC flue collar to a polypropylene vent system. It is engineered to adapt to InnoFlue at the boiler connection. Before specifying this adapter, consult the Centrotherm OEM manual for the intended appliance to confirm the correct adapter model is being used. Not all appliances accept the same adapter, and the OEM manual will identify the approved configuration.

Key Features

• Transitions PVC flue collar to InnoFlue polypropylene venting components
• Integrated gasket creates an airtight seal without adhesives or solvents
• Rated to 230 degrees F (110 degrees C) for high-temperature flue gas environments
• Evaluated to UL1738 and ULCS636 by ICC
• Single-wall construction sized for 3-inch vent systems
• Approved by appliance manufacturers for use on specific furnaces, water heaters, and boilers

Compatibility

Approved for use on specific makes and models of furnaces, water heaters, and boilers that require a transition from a PVC flue collar to a polypropylene vent system. Consult the Centrotherm OEM manual for the specific appliance to confirm correct adapter selection before installation.

Installation Notes

Installation should be performed by a licensed HVAC technician or plumber in accordance with the appliance manufacturer installation and operation manual and applicable local mechanical codes. Power down and shut off gas supply to the appliance before beginning any venting work. This adapter installs without glues, primers, or solvents — do not apply adhesives to the connection. Always follow the appliance IO manual and verify the adapter is the model specified for the intended appliance before completing the installation.

Technical Specifications

• Pipe Diameter: 3 inches
• Wall Type: Single Wall
• Material: PVC to Polypropylene (PP)
• Temperature Rating: 230 degrees F (110 degrees C)
• Certifications: UL1738, ULCS636 (evaluated by ICC)
• Seal Type: Integrated Gasket

Standard Information

• Brand: CENTROTHERM
• Manufacturer Part Number: isagl0303-12