Ideal for homeowners, enthusiasts, and HVAC professional seeking stable fittings for residential or light commercial ventilation upgrades Featuring pre drilled holes and a 3 inch diameter, the flange simplifies installation while maintaining compatibility with dryer vents, exhaust, and HVAC ductwork Perfectly adapts to dryer vents, bathroom / kitchen exhaust systems, or heating / cooling ducts to simplify airflows management in homes, laundromats, or workshops Engineered for general compatibility, this ABS flange secure leak easy joints in 3 inch duct systems, combining structural rigidity with hassle easy maintenance Crafted from strong ABS with a seamless circular design, these 2 piece duct connector flanges secure long lasting for secure ventilation systems connection, Manufacturer: JunsenF