Culligan RO Filter Set Membrane AC-30 Reverse Osmosis System with 3/8 Inline
1 pc Culligan CAC-105 Carbon Block Reverse Osmosis Filter. The PRE-RO water filter is used in Culligan Reverse Osmosis systems AC15, AC30, LC50, and H83. The Culligan TFM-36-A, M-T1812A36-CUL fits the following Reverse Osmosis systems.