【Compatible model】: Interchangeable with Culligan RC-EZ-1, RC-EZ-3, RC-EZ-4 and compatible with IC-EZ, US-EZ, RV-EZ system; Brita USF-201, USF-202, USF-203; DuPont WFQTC30001, WFQTC70001. 【Safe material】: Uses food-grade plastic housing and will not leach contaminants back into your water.
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