Lambro 4 in. x 3 in. Vent Adapter Reducer and Increaser

The Lambro 4 in. x 3 in. Vent Adapter Reducer and Increaser provides a dependable solution for duct transitions in venting applications. Designed for versatile installation, it functions effectively as both an increaser and a reducer to accommodate varying duct sizes. Constructed from durable plastic, this vent adapter offers reliable airflow management for washer and dryer venting or general ventilation setups.