[Universal Fit for 2.9"-3.9" Large Pipes]Engineered with a flexible bottom opening, this downspout filter easily adjusts to fit roof drains, oversized gutters, and vent pipes with inner diameters from 2.9" to 3.9". Achieve a secure, tool-free installation that stays firmly in place in residential and light commercial systems. [Heavy-Duty Debris & Pest Barrier]The dense stainless steel mesh efficiently blocks leaves, twigs, and roof grit from entering downspouts and drains, greatly reducing clogging risks. At the same time, the rigid structure helps keep birds, bats, rodents, and other pests from nesting in open vent and exhaust pipes. [Premium 304 Stainless Steel Construction]Made from thick, corrosion-resistant 304 stainless steel, this gutter guard resists rust, deformation, and UV damage even under harsh weather exposure. Unlike plastic or aluminum versions that crack or warp, this heavy-duty filter ensures reliable long-term performance season after season. [Reduce Maintenance, Save Time & Costs]By preventing blockages in large-diameter downspouts and vent lines, this guard helps maintain consistent water flow and airflow, lowering the need for frequent cleanouts. Fewer clogs mean less risk of overflow, water intrusion, and costly repairs from moisture damage or hidden pest infestations. [Versatile Protection for Drains & Vents]With a 4.73" overall height and adaptable design, this filter is ideal for flat roof drains, patio and yard drainage pipes, gutter downspouts, and furnace, dryer, or roof vent terminations. Color: Silver Material: 304 Stainless Steel Package Contents: 1*filter Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.