4P45 - Biomass / Pellet 45 Degree Elbow - 4"Biomass Products Catalog Metal Fab 4P45 Biomass Pellet 45 Degree Elbow 4" Used to obtain lateral movement around obstructions or to angle the biomass chimney towards the wall thimble. Elbows are factory sealed and are non adjustable. Available in 3" and 4" diameters. For use with biomass fuels such as pellet, corn, wheat or other grassy and woody plants as specified by appliance manufacturers. Features Type L Biomass Chimney Stainless liner Galvanized
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