Profile: C. A. Schroeder, Inc. is engaged in HVAC products. Our products include lined ducts, flexible duct products, lay-in diffusers, collar, sheet metal and accessories. Our lined ducts include circliner, which are used for heating, ventilating and air conditioning systems. Our collars are used in commercial, industrial and residential heating, cooling and ventilation applications. We have flexible duct products, which are flexible aluminum duct, Casco l181, Silent flex, Cal-flex #2pmj and Cal-flex #2ppj. Our accessories include flexmate-285, Cascote, Casco clips and utility tapes.