WD-A1-CF Filter for A1 RO Hot Cold Water System

The WD-A1-CF is an activated carbon block replacement filter designed for the Waterdrop A1 reverse osmosis hot and cold water system. The carbon block stage reduces chlorine, VOCs, taste and odor contaminants, maintaining the water quality and performance of your A1 system. Genuine Waterdrop replacement filter — use only OEM filters to preserve your system's certified filtration performance and warranty coverage.

Shipping rates are calculated at checkout based on weight and destination. Most orders ship within 1-3 business days directly from the manufacturer's warehouse; ground delivery typically takes 3-8 business days.

See our Shipping Policy for full rate and delivery details. Questions? Contact contact@reinwaterusa.com.

Replacement filters are covered by manufacturer warranty against defects in materials and workmanship. Contact contact@reinwaterusa.com within 30 days of delivery for return authorization.

Note: Installed or opened filter cartridges cannot be returned.