Durable stainless steel chimney cap designed to be waterproof, scratch resistant and wear resistant. Its stable structure resists external impact and strong winds, helping to extend service life. Size compatibility: available for pipe holes of 80, 90, 100, 110, 120, 130, 140, 150, 160, 170, 180, 190, 200, 210, 220, 230, 240, 250 and 300 mm. Please measure the outside diameter of your pipe before selecting a size to ensure a proper fit. Round chimney cap design keeps leaves, rain, snow and small animals from entering the chimney, prevents rainwater backflow, reduces blockages and provides better ventilation, ensuring a cleaner and safer stove. Application and compatibility: suitable for wood burning stoves, wood boilers, oil burning stoves, furnaces, heaters, fireplaces or outdoor mud soil stoves, kitchen range hoods, water heaters and other equipment in family homes. A musthave fireplace chimney topper cap to protect stoves. Use scenarios: Installing on a residential wood burning stove to prevent debris and animals from entering the vent while improving airflow. Using with a kitchen range hood or water heater vent to deter rain and blockages in outdoor or indoor installations. Mounting on outdoor stoves or mud stoves to protect the vent from weather and prolong component life.