What we love about this product:

1. Contains 2 Backflow Protectors, including 2 Large Caps, 2 Small Caps, and 2 Silicone Diaphragms.
2. Replacement for Spectra Backflow Protectors, both new and old versions.
3. Designed to work with the flanges of Spectra M1, S1, Spectra S2, and 9 Plus Breastpumps. 
4. No milk will enter the tubing, and thus it minimizes mold growing and protects your pump motor.
5. FDA registered medical devices. Made from BPA free Materials, and can be sanitized with boiling water or water steam.
6. Comply with FDA regulation 21 CFR 177.1520, 21 CFR 177.2600 and EU Commission Regulation (EU) No 10/2011 for plastic materials that intended to come into contact with food.
7. Every batch is tested by independent labs for safety. All items packaged in retail pack, sealed by manufacturer for best protection and hygiene.

Backflow protector diaphragms need to be replaced every 3 to 6 months

Just like the valve membranes, the diaphragms in the backflow protectors can stretch and degrade over time, impacting suction. Replace these every 6 months if you pump once or twice a day, and replace every 3 months if you exclusively pump. Inspect this part regularly before you pump because a torn or damaged backflow protector diaphragm can allow moisture into the pump motor, causing irreparable damage and the potential for mould and bacteria to fester. This part does not come in contact with your baby’s milk, so does not need to be washed, unless you see condensation in the part. Then, wash it in hot soapy water and let it air dry and ensure it is completely dry before use again. The backflow protector is the heart of a closed system pump and protect your baby’s milk from contaminants and bacteria that could cause harm, so take great care of these. If not changed regularly, they will impact suction strength.