Lambro 4-in Plastic Round Duct Reducer | L235
$3.88
Description
The duct to duct increaser joins 3-in to 4-in flexible ducts together. It is ideal for bathroom fan exhaust applications. Old bathroom fan exhausts that are 3-in can be increased to used 4-in duct to vent. Lambro 4-in Plastic Round Duct Reducer | L235