Imperial BM0173 Universal Aluminum Chimney Cap
- Adjustable from 6-inch to 12-inch Inside Measurement
- Fits Square, Rectangular or Round Chimneys
- For Use With All Brick, Concrete and Masonry Chimneys
- Steel screen prevents Birds, Rodents, Rain & Debris From Entering Your Chimney
- Reduces Downdrafts and Protects your Roof from Sparks
- Made in Canada.