10" Triple-Wall Weathershield - Oversize WeatherShield Chimney Caps Keep Rain, Snow, Animals, Leaves & Other Debris Out of Your Chimney! Constructed with 304 Stainless Steel & 1" Clog-Resistant Mesh Available with 1/2" California Mesh Screen Over Sized, 19" Lid Available for 6" - 10" Diameter WeatherShield TDW Chimney Caps for Air-Cooled Pipe