BMMXBI Grill Smoke Stack Replacement Part: For Pit Boss 77550 77700, 3 Series Vertical, 5 Series Vertical, 7 Series Vertical Pellet Smoker. Please kindly make check the SIZE and MODEL of your parts and compare with ours BEFORE purchasing The surface of the Chimney is made of black powder coated steel, which is not easy to rust, high temperature resistant and has a long service life, and the chimney is more insulated BMMXBI Pellet Grill Chimney increases air circulation in the smoker allowing for more even heating and adding more smoky flavor to your food Packaging Includes: Our product is a Chimney Pipe And a Chimney Cap, easy to install, convenient and effective to use About BMMXBI: BMMXBI is an integrated manufacturing and sales BBQ brand with professional experience in manufacturing BBQ accessories. Please be sure our product fit your grill size before purchase. We will always endeavour to provide you with better products and services ✅BMMXBI grill smoke stack replacement part for Pit Boss 77550 77700, 3 Series Vertical, 5 Series Vertical, 7 Series Vertical Pellet Smoker. ✅Please kindly make check the SIZE and MODEL of your parts and compare with ours BEFORE purchasing. ✅The surface of the chimney is made of black powder coated steel, which is not easy to rust, high temperature resistant and has a long service life, and the chimney is more insulated. ✅BMMXBI pellet grill chimney increases air circulation in the smoker, allowing for more even heating and adding more smoky flavor to your food. ✅Our product is a chimney pipe and a chimney cap, easy to install, convenient and effective to use. ✅BMMXBI is an integrated manufacturing and sales BBQ brand with professional experience in manufacturing BBQ accessories. Please be sure our product fit your grill size before purchase. We will always endeavour to provide you with better products and services. If you have any questions about the products, please feel free to contact us.