Waterdrop ultrafiltration under-sink replacement cartridge

Compatible systems in our guide

Replacement guidance

Up to 12 months or 11,000 gallons, depending on water quality and use. Multi-stage systems can require different schedules for different cartridges, so use the manual rather than replacing every stage automatically at the same time.

Checks before purchasing

• Confirm the complete system model and stage count.
• Compare the installed cartridge or membrane part number.
• Confirm membrane capacity and connection style where applicable.
• Review the manufacturer’s current compatibility information.

How this entry was verified

We used the named manufacturer’s replacement information as the primary compatibility reference. Retailer descriptions are a purchasing aid, not our source of truth.