Selkirk Sure-Temp Insulated Pipe Storm Collar is expertly designed to fit securely on the round chimney pipe just above the roof flashing, providing reliable protection against water infiltration. Its upper edge should be sealed with a plastic sealer to ensure a waterproof barrier between the storm collar and the chimney pipe. The collar is fastened firmly in place using screws or tabs after proper positioning, ensuring a tight and secure fit. Standing 5-1/2 inches high, this storm collar comes in two sizes: 8 inches and 10 inches, both made from durable aluminum. It is specifically designed for use with the Selkirk Sure-Temp Model SSII chimney pipe, ing a match for optimal performance. Each package includes one storm collar, making it easy to install and maintain the integrity of your chimney system. Model Number: 5/6T-SC (for 8") or 7/8T-SC (for 10")