ISPRING NS15 RO Membrane Housing, Fits RCS5T Reverse Osmosis Water Filtration System, Comes with 4046K-O x1 and 4044K-O x2

This housing fits RCS5T Water Filtration System. It Comes with 4046 K-O x 1 and 4044 K-O x 2. Do you need the wrench for this housing. Please refer to AWR5.