Enhance your home's ventilation system with this durable 4-inch galvanized steel pipe collar, designed to seamlessly integrate with your existing ductwork. Crafted from 28-gauge steel, this collar ensures long-lasting performance and resistance to corrosion, making it an ideal choice for both residential and commercial applications. Its precision-engineered design guarantees a snug fit, offering reliable support and an aesthetically pleasing finish to your HVAC installations.