eufy Breast Pump E20/S1/S1 Pro/S1 Pro Flex, 24mm Double-Sealed Flange 2-Pack,Pump Replacement Parts: Food-Grade Silicone supports HeatFlow Tech for a Durable, Ergonomic & Comfortable Fit.

Compatibility: Only compatible with eufy Breast Pump E20 / S1 / S1 Pro / S1 Pro Flex. Double-Sealed Flange for Optimal Fit and Output: The double-layer design offers superior cushioning that eliminates pinching. Its secure seal optimizes suction efficiency to boost milk flow, while providing a natural, non-sticky experience. Warm, Smooth Breast Pumping: Experience soothing warmth during pumping sessions with our innovative HeatFlow technology. Easy to Clean: Wash with warm, soapy water and rinse well after each use. Dishwasher, fridge, and freezer-safe for quick and easy cleaning. Soft Silicone: The durable silicone flange ensures strong suction for your breast pump while keeping the milk collector sealed. Comfy Fit: Designed for optimal comfort and an ergonomic fit, delivering a pleasant breast pumping experience. Works with Third-Party Inserts: Designed to work flawlessly with both eufy inserts and those from other brands. Guaranteed Reliability: eufy breast pump accessories are covered by a 90-day limited manufacturer's warranty. Lifespan: Typically lasts 3 months. Replace if suction and performance decrease with use, or based on your usage.