Hegen PCTO Standard Neck Adapter (Pack of 2)Hegen PCTO Standard Neck Adapter (Pack of 2) The Hegen PCTO Standard Neck Adapter allows mothers to pump breast milk directly into Hegen bottles. This enables a seamless pumpstorefeed process using a single bottle, reducing the need for disposable milk storage bags. Features: Standard adapter compatible with Hegen bottles for direct pumping. Supports both manual and electric breast pumps. Simple to use: just swap the adapter to pump, store, and feed