Gibraltar Building Products 3 in. and 4 in. Adjustable Pipe Flashing with Aluminum Base and Rubber Collar 23191 - The Home Depot

Highlights

25 mil aluminum base with customizable elastomer collar
• 3 or 4 in. outside pipe diameters
• Tested for ultra-violet
ozone and weather resistance
• 1-piece construction for easier installation
• For roof pitches up to 21/12 when adjusted for 1-1/2 in. and 2 in. pipes and up to 14/12 for 3 in. pipe
• Suitable for commercial or residential use