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Maymom Silicone Membrane for Spectra & Maymom Backflow Protectors (2 Pack)
Replacement silicone membranes designed to keep your breast pump working efficiently, hygienically, and comfortably.
The Maymom Silicone Membrane is a high-quality, aftermarket replacement diaphragm compatible with Spectra S1, Spectra S2, Spectra 9 Plus, and Maymom backflow protectors (long, short, and medium stem – white).
Regularly replacing your silicone membranes helps maintain suction strength, protect your pump motor, and support effective milk removal—especially important if you’re pumping frequently.
✔ Compatible With
Spectra S1 breast pump
Spectra S2 breast pump
Spectra 9 Plus
Maymom Backflow Protectors (long, short & medium stem – white)
Please note:
This membrane does not fit older versions of Spectra backflow protectors. Refer to the product images to confirm compatibility before purchasing.
Why Replace Your Silicone Membrane?
Silicone membranes can stretch, weaken, or lose their seal over time—often without it being obvious.
Replacing them regularly can help:
Maintain consistent suction
Improve pump performance
Reduce milk loss and backflow risk
Support hygiene and milk safety
Reduce strain on your pump motor
For best results, and to maintain optimal hygiene, backflow protectors and membranes should be replaced every 6–12 weeks, depending on how often you pump.
Product Features
2 membranes per pack
Made from stronger, durable silicone
Designed for reliable suction and improved performance
Aftermarket replacement compatible with Spectra & Maymom systems
BPA-free and safe for breast milk use
Who Is This For?
This product is ideal if:
You pump daily or multiple times per day
Your pump feels weaker than usual
Your membranes look stretched, cloudy, or misshapen
You’re replacing pump parts as part of routine maintenance
Care & Use Tips
Wash before first use
Inspect regularly for signs of wear or loss of elasticity
Replace promptly if suction decreases or milk enters the backflow protector
Pair with correctly sized flanges for best pumping comfort and output
What’s Included
2 × Maymom Silicone Membranes
Need help choosing compatible pump parts or troubleshooting suction issues?
You’re always welcome to reach out—or explore our full range of Spectra-compatible accessories to keep your pumping setup working at its best.
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Replacement Maymom silicone membranes for Spectra S1, S2 & 9 Plus backflow protectors. Improve suction, hygiene & pump performance. 2 pack.