Deflecto Duct Plastic Increaser and Reducer, 4" to a 3", Sold as 3 Pack (IRB43)

Adapt your 3” duct to a 4” exhaust hood with the Deflecto Duct Increaser and Reducer. This polypropylene plastic connector is an ideal connector when installing bathroom fans as well. Slip the ducts over the ends of the increaser/reducer, and tighten down with clamps (not included). Durable and lightweight, this reducer has a melting point of approximately 325 degrees F. Deflecto was founded on innovative, problem solving products. For over a half century, we have built a tradition of discovering and meeting needs with invention and dependable manufacturing. Today, Deflecto is the world’s largest chair mat, bicycle reflector and dryer venting manufacturer and a global leader in sign and literature holders, office workspace accessories and other air distribution products. Set of 3.

• Designed to transition between 4" and 3" diameter ducts
• Simply slip the ducts over the increaser/reducer, tightening in place with clamps (not included)
• Durable polypropylene construction has a melting point of approximately 325 degrees
• Connects a 4 inch dryer exhaust hood to a 3 inch duct
• Ideal for bathroom fan installations