

Ships same day if ordered by 12 pm
Manufacturer pricing rules prevent us from advertising our discount — no account or email required to see it.
Secure Payments
Easy Returns
Expert Advice
Fast Shipping
The WILLIAMS COMFORT PRODUCTS 6CN100T04 is a straight lock-nut cylinder measuring 4 inches, designed for use in heating system applications where a secure, leak-resistant mechanical connection is required. This fitting-style component provides a threaded lock-nut interface that holds piping or tubing firmly in place, preventing movement or loosening under normal operating conditions. It is typically installed by licensed HVAC technicians or plumbers during system assembly or service. The straight configuration simplifies inline installation without requiring additional bends or offsets.
This lock-nut cylinder is suited for residential and light commercial heating installations where straight-run connections are needed. The 4-inch straight design is commonly used in vent or piping runs associated with Williams Comfort Products heating equipment. It is appropriate for applications where a rigid, positive-locking cylinder connection is specified by the equipment manufacturer or installation instructions.
Designed as an OEM-style replacement or accessory cylinder for WILLIAMS COMFORT PRODUCTS heating systems requiring a 4-inch straight lock-nut cylinder connection.
Installation should be performed by a qualified HVAC technician or licensed plumber in accordance with applicable local codes and the equipment manufacturer's instructions. Shut down and de-energize the associated heating equipment before beginning any work on connected piping or vent components. Ensure all threaded connections are properly engaged and the lock-nut is fully tightened to prevent movement during operation. Do not overtighten to the point of damaging threads or adjacent components.
Thanks for subscribing!
This email has been registered!