Hart Cooley 8rtc 8 Inch B-vent Round Tee Cap

Product Description

The HART COOLEY 8rtc is an 8-inch round tee cap designed for Type B gas vent systems. It fits over the open branch of a B-vent tee fitting to close off unused ports, prevent debris entry, and maintain proper draft integrity in the vent assembly. At 0.06 pounds, it is a lightweight sheet-metal component. HVAC technicians and plumbers install this cap during new construction or when reconfiguring existing gas appliance vent systems that use double-wall B-vent pipe.

This tee cap is used in residential and light commercial applications wherever Type B vent pipe is installed for gas-fired appliances such as furnaces, boilers, and water heaters. It is installed at the tee branch point to cap off a section of the vent run that is not actively routing flue gases. Proper capping of open tee branches is required to maintain correct draft and to comply with applicable vent installation codes.

Key Features

• 8-inch round profile sized for standard B-vent tee fittings
• Lightweight at 0.06 pounds for easy single-hand installation
• Closes off unused tee branch ports to protect vent integrity
• Compatible with Type B double-wall gas vent systems

Compatibility

Designed as an OEM-style replacement cap for 8-inch Type B round gas vent tee fittings in residential and light commercial venting installations.

Installation Notes

Installation is performed by a licensed HVAC technician or plumber working on gas appliance venting. Shut off the gas supply and allow the vent system to cool completely before handling any vent components. Follow NFPA 54 and the appliance manufacturer venting instructions for proper B-vent assembly and cap placement. Do not use this cap to permanently block an active flue gas flow path.

Technical Specifications

• Size: 8 inches
• Shape: Round
• Item Weight: 0.06 pounds

Standard Information

• Brand: HART COOLEY
• Manufacturer Part Number: 8rtc