Lambro 137 Aluminum Duct Transition Fitting, 3-1/4 X 10 In. To 6 In. Round

This Lambro aluminum duct transition fitting adapts rectangular ductwork to round ductwork, making it an essential component for HVAC systems, range hood venting, and floor register installations. The fitting smoothly transitions a 3-1/4 x 10 inch rectangular duct to a 6 inch round duct, allowing you to connect different duct sizes and types in your heating, cooling, and ventilation systems.

Whether you're installing a new range hood, upgrading an exhaust system, or connecting rigid metal ductwork throughout your home or building, this transition fitting provides a reliable solution. The pre-installed s-cleats speed up installation, reducing the time and effort needed to secure the fitting in place.

Features and Benefits

• Rectangular to Round Transition: Adapts a 3-1/4 x 10 inch rectangular duct opening to a 6 inch round duct, allowing flexible system design and connection options.
• Durable Aluminum Construction: Built from aluminum for durability without excess bulk.
• Pre-Installed S-Cleats: Built-in fastening cleats help with installation.
• Versatile Applications: Works with rigid metal ductwork, flexible insulated ducts, HVAC systems, range hoods, and floor registers.
• Made in the USA: American-manufactured product.

Specifications

• Brand: Lambro
• Model: 137
• Duct Size: 3-1/4 x 10 inches to 6 inches round
• Material: Aluminum
• Pre-Installed S-Cleats: Yes

How to Use

Install using sheet metal screws (not included). Seal seams with code-approved mastic, sealant, or duct tape (not included).