Compatibility: Compatible with eufy Breast Pump  E20 / S1 / S1 Pro.

Safety First: Made from food-grade silicone, the spout cap that comes into contact with breast milk ensures safety and gives you peace of mind about your baby's milk.

Guaranteed Reliability: eufy breast pump accessories are covered by a 90-day limited manufacturer's warranty.

Lifespan: Typically lasts 1-3 months. Replace if suction and performance decrease with use, or based on your usage.