LAMBRO 235 VENT ADAPTER FEMALE (LARGE END), FEMALE (LARGE END), MALE (SMALL END), PLASTIC, BLACK

The Lambro 3 inch to 4 inch plastic duct connector is ideal for bath fan exhaust installations. Used to increase the duct diameter size from the bath fan 3 inch exhaust port to the 4 inch duct going to the outside. The polypropylene material resists moisture to remain corrosion-free.

• Retail cut case
• Increase bathroom fan exhaust venting diameter from 3-inch to 4-inch
• Not to be used in clothes dryer installations
• Made of polymer resin material
• Installation clamps or tie straps (not included)