The product includes one CB filter and is designed to be easy to install and maintain.
Waterdrop WD-G3-CB G3 RO System Replacement Reverse Osmosis Membrane NEW
Compatible with: Waterdrop G3 RO systems. Lasts up to 12 months (or ~1,100 gallons).
MB-H7-CB Filter, 1-year Lifetime, Replacement for MB-H7 Reverse Osmosis System
Reverse Osmosis System. The system does that automatically to ensure there is no water leakage.
