Heavy - given to too much indulgence of bodily appetites especially for intoxicating liquors; "a hard drinker" Product 1221G is often a large functionality mix hearth/smoke damper precisely designed for supply or return ducts that terminate at a grille. The factory sleeve with exclusive three/4" (19) grille mounting tabs simplifies https://jaredgyocq.blogoxo.com/37127461/the-greatest-guide-to-dampers-for-industrial-sector