4" x 12" Adjustable Pipe, Type B Gas Vent

Product Overview

The Hart & Cooley 016107 (4RPA12) Adjustable Gas Vent Pipe is a Type B gas vent component designed for professional installation in Category I natural gas and propane-fired appliance venting systems. This adjustable length section allows for precise fit and alignment in vertical or offset vent runs, ensuring a secure, code-compliant connection. Constructed from corrosion-resistant galvanized steel with double-wall construction, it provides long-term durability and thermal safety in residential and commercial venting applications.

Technical Specifications

• Model: 016107
• Manufacturer: Hart & Cooley
• Series: RPA
• Product Type: Adjustable Type B Gas Vent Pipe
• Inside Diameter: 4 inches
• Outside Diameter: 3-5/8 inches
• Adjustable Length: 12 inches
• Wall Thickness: 0.018 inch
• Material: Galvanized steel (double-wall construction)
• Connection Type: Twist-lock coupling compatible with RPA Series fittings
• Temperature Rating: Up to 400°F (204°C) continuous flue gas temperature
• Pressure Rating: Negative pressure venting systems only
• Application: Venting of Category I gas-fired furnaces, boilers, and water heaters
• Mounting Configuration: Vertical or horizontal installation per manufacturer instructions
• Finish: Factory-galvanized exterior for corrosion resistance
• Compliance: UL 441 Listed; meets NFPA 54 (National Fuel Gas Code) and NFPA 211 requirements

Professional Notes

Install according to Hart & Cooley venting instructions and applicable mechanical codes. Ensure full engagement of twist-lock joints before securing. Maintain required clearances to combustibles as specified for Type B vent systems. Do not cut or modify the adjustable section, as this may compromise structural integrity and listing compliance. Support the vent per code at recommended intervals to prevent stress on joints and maintain alignment throughout the vent system.

Summary

The Hart & Cooley 016107 (4RPA12) Adjustable Gas Vent Pipe is a 4-inch ID, 12-inch long, 0.018-inch thick Type B vent section designed for Category I gas appliance venting. Manufactured from galvanized steel with a twist-lock connection, it provides a durable, code-compliant adjustable solution for professional HVAC venting installations.