Hart Cooley 3etc Type B Vent Round Tee Cap 3 Inches

Product Description

The HART COOLEY 3etc is a round tee cap designed for use with 3-inch Type B gas vent systems. It fits over the open branch of a Type B vent tee fitting to close off unused tee openings, keeping the vent system sealed and properly configured. The cap is a low-weight component, coming in at 0.05 pounds, and is sized to match 3-inch Type B vent pipe diameter. HVAC technicians and gas appliance installers work with this type of fitting when configuring or capping off branch connections in residential gas vent systems.

This tee cap is used in residential and light commercial Type B gas vent installations where a tee fitting requires a capped branch. Common applications include venting natural gas or propane appliances such as furnaces, water heaters, and boilers through vertical or near-vertical Type B double-wall vent runs. The cap keeps the vent system airtight at unused tee openings during installation or system reconfiguration.

Key Features

• Round profile fits standard 3-inch Type B vent tee fittings
• Caps unused branch openings on Type B vent tees to maintain system integrity
• Lightweight at 0.05 pounds for easy handling during overhead or confined-space installs
• Sized for Type B double-wall gas vent systems

Compatibility

Designed as an OEM-style cap for use with 3-inch Type B double-wall gas vent tee fittings in residential gas appliance venting applications.

Installation Notes

Installation should be performed by a licensed HVAC technician or qualified gas appliance installer in accordance with NFPA 54 and local mechanical codes. Shut off the gas supply and allow the appliance and vent components to cool before working on any vent section. Ensure the cap is fully seated and secured on the tee branch opening before restoring appliance operation. Do not use this cap as a permanent seal on an active vent branch.

Technical Specifications

• Size: 3 inches
• Shape: Round
• Item Weight: 0.05 pounds
• Vent Type: Type B

Standard Information

• Brand: HART COOLEY
• Manufacturer Part Number: 3etc