Hart Cooley 4etc B-vent Round Tee Cap 4 Inches

Product Description

The HART COOLEY 4etc is a 4-inch round tee cap designed for use with Type B gas vent systems. It fits over the tee fitting in a B-vent assembly to seal the opening and maintain proper draft performance. Licensed HVAC technicians and gas appliance installers use this cap to complete tee installations in vertical and offset vent runs serving natural gas and propane appliances. At 0.06 pounds, it is a lightweight component that plays a direct role in keeping the vent system closed against debris, backdraft, and moisture intrusion at tee junctions.

This tee cap is intended for residential and light commercial B-vent installations. Type B double-wall gas vent systems are commonly found serving gas furnaces, boilers, water heaters, and other Category I appliances that require a listed venting assembly. The cap is used at accessible tee cleanout or branch points in the vent run where a sealed termination is required to maintain system integrity.

Key Features

• 4-inch diameter fits standard B-vent round tee fittings
• Round profile matches Type B double-wall vent system geometry
• Lightweight at 0.06 pounds for easy single-hand installation
• Seals open tee ports to prevent debris and moisture entry
• Used in residential and light commercial gas appliance venting applications

Compatibility

Designed as an OEM-style replacement or service component for 4-inch Type B round gas vent tee assemblies in residential and light commercial venting systems.

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 appliance and allow the vent system to cool before handling any vent components. Confirm the cap diameter matches the tee fitting before seating it to ensure a proper seal. Do not use this cap on vent types or diameters for which it is not listed.

Technical Specifications

• Size: 4 inches
• Shape: Round
• Item Weight: 0.06 pounds

Standard Information

• Brand: HART COOLEY
• Manufacturer Part Number: 4etc