Aquasana EQ304 Rhino Whole House Prefilters

This 4-pack of Aquasana EQ304 Whole House Prefilters is for use with the Rhino EQ300 Whole House Water Filter.

The prefilters prevent dirt and sediment from clogging the main filter unit. They should be replaced every 4 to 6 months, depending on the level of sediment in your water. If your water flow slows, or if the taste or color of your water changes, it's time to change the prefilter.