Spectra Wearable Breast Pump Parts for S18 S21 Pump Milk Collection Cup Duckbill Valve Silicone Diaphragm

This S18/S21-compatible wearable breast pump parts set includes a 24mm/27mm flange, a collection cup, a duckbill valve, and a silicone diaphragm.

Materials and safety: The components are made from durable, BPA-free, food-grade silicone. The odorless, soft silicone is skin-friendly and non-toxic, designed for repeated use during pumping.

Compatibility and use: Designed to complement the S21 portable breast pump and compatible with S18 and S21 pump systems. The set includes the flange, collection cup, duckbill valve, and silicone diaphragm to support reliable pumping operation.