Master Flow 4 in. to 3 in. Round Reducer

Master Flow R4X3 4 in. to 3 in. Round Reducer

• Master Flow Reducers are used to decrease the diameter of the pipe when making connections in an HVAC system
• Hemmed collar edges make these Reducers especially strong and snug-fitting
• They can also be used to increase pipe diameter if necessary
• Galvanized steel construction
• Always seal seams with building code approved sealant or duct tape
• Always insulate ductwork for greater system efficiency and comfort

The Master Flow 4 in. x 3 in. Round Reducer is made of galvanized steel. It features hemmed collar edges for enhanced strength and a secure fit. The reducer is used to transition from a 4 in. pipe to a 3 in. pipe in an HVAC system. It is suitable for most HVAC applications. |30-Gauge, galvanized steel construction for durability|Hemmed collar edges for an improved fit and increased strength|Connects 4 in. pipe to 3 in. pipe in duct run|Seal seams with code-approved mastic, sealant or duct tape (sold separately)