The BoilerMag BM22 Dual Flow System Filter is a high-quality product designed specifically for heating systems that use boilers. Manufactured by Boilermag, this filter helps to keep your heating system running smoothly and efficiently. With its dual flow design, it effectively filters out impurities and debris to ensure that your boiler continues to function at its best. This product is essential for maintaining the health and longevity of your heating system, making it a valuable investment for any home.