The 2 Pack RWFVRF1 Filter Replacement by OHFULLS is compatible with the Viking 3 Series Filter RVRF3361. Made of Activated Carbon Block, these white filters come in a size of 2*9*2 and weigh 1.52 Pounds. With a unit count of 3.0 and dimensions of 9.13x7.17x1.97 Inches, these filters are easy to handle and care for with hand wash instructions. Keep your water clean and fresh with this reliable filter replacement.