4-Pack Premium Replacement Water Filters for Dongyang Betechs SIAM CWP-2116 & CWP-2155 - 1 Micron Filtration - Perfect for Home, Office, and RV Water Purification Systems

Caution: Before drinking the water please make sure to flush water thoroughly to ensure that the air is discharged. It is a process of removing carbon powder (charcoal powder) from the filter manufacturing process. Please let the water flow for around 2 minutes (4 liters). Repeat with each filter.