ROYAL PURE FILTERS RPF-DA29-0020B REPLACEMENT WATER FILTER FOR SAMSUNG DA29-0020B, DA2900019A, DA2900020A The Royal Pure Filters RPF-DA29-0020B Refrigerator water filter is a compatible replacement providing fresh, clean, and great tasting drinking water. This filter reduces – Chlorine Taste & Odor (CTO) and Lead. Our filters are made with activated carbon produced using a new technology that carbonizes dried coconut shells. Coconut carbon is superior to other sources of activated carbon. It has 50% more micro-pores for capturing contaminants.