Brio Stage-1 Melt-Blown Polypropylene Sediment Water Cooler Filter Replacement is compatible with Brio model CLPOUROSC420RO Water Cooler. This stage-1 filter blocks large particulates and suspended solids like rust, dust, and dirt, resulting in reduced turbidity and cloudiness. Its easy twist-in design lets you change filters in less than 10 seconds, plus it delivers 3 liters per minute of refreshing hydration.