Protect your breast milk and pump with the Spectra Backflow Protector, designed to maintain a closed pumping systemand prevent contamination. This essential part acts as a physical barrier between your milk and the pump motor, ensuring hygienic expression every time. Whether you're replacing worn-out parts or building a backup set, this BPA-free backflow protector is compatible with Spectra pumps, including the S1, S2, 9 Plus, and Synergy Gold. Key Features: Includes 1 backflow protector assembly Compatible with Spectra S1, S2, 9 Plus, and Synergy Gold pumps Maintains a closed system for maximu milk safety Prevents milk and moisture from entering the tubing or pump motor Easy to disassemble and clean Made with BPA-free, food-grade materials Ideal for replacing parts every 3–6 months for optimal performance Note: Replace regularly for hygiene and effective suction.