The 3MROP310, part number 47-9290G2, is a 3M Replacement Filter SQC Systems Sediment/Carbon Prefilter. The 47-9290G2 Carbon Prefilter is designed for use with the following water filtration systems: Water Factory SQC Series Reverse Osmosis Systems and the 3MRO301. Reduces Sediment; Chlorine taste and odor; has a flow rate of 8.28 gpd; and has a 12-month lifespan. Easy Installation and filter change. Replaces the obsolete part #47-55706G2. Replaces the obsolete 47-55706CM, 47-55706G2, and 47-55708CM.