NENESUPPLY Backflow Protector for Spectra S1/S2 – 2-Pack with Membranes & Cases

Discover the NENESUPPLY Backflow Protector set, designed to work with Spectra S1, S2, and Spectra 9PLUS breast pumps. This 2-pack includes two large cases, two small cases, and two silicone membranes, providing ready-to-wind replacements that feel familiar in your routine yet offer a fresh, organized setup every time you pump.

Every piece is designed with a tactile, sturdy feel—clear surfaces and snug seals invite routine use without guesswork. The closed-system design helps keep milk away from tubing, reducing the chance of cross-contact during busy mornings and late-night pumping sessions. The soft silicone membranes cushion connections and help maintain a secure fit between pump parts and tubing, contributing to a calm, predictable pumping experience.

What’s included

• 2 NENESUPPLY backflow protectors compatible with Spectra S1, S2, and 9PLUS
• 2 large cases for easy storage of assemblies
• 2 small cases for portable kit setups
• 2 silicone membranes for quick replacements

Key features and compatibility

• Closed system with no contact between milk and tubing
• Materials are BPA-free and suitable for sanitation via boiling water or steam
• Complies with EU regulation 10/2011 for food-contact plastics
• Retail-pack sealed by the manufacturer; each batch lab-tested for safety

Practical usage and benefits

Whether you’re pumping at home or on the go, the dual-case setup keeps components organized and ready. The included membranes support quick replacement when needed, while compatibility with Spectra S1, S2, and 9PLUS systems helps you maintain a familiar pumping routine with non-original parts that fit your existing setup.

Care and maintenance

• Sanitize by boiling water or steam, following your device’s guidelines
• Inspect membranes for wear and replace as needed to maintain performance

Note: This product is a compatible, non-original part intended to complement your Spectra system. While it may support everyday pumping routines, individual results may vary.