Mompmuir 15mm Silicone Flange Inserts – Compatible with Elvie Stride, Lansinoh, Medela, Spectra & More | Reduce 24-25mm to 15mm

Mompmuir 15mm Silicone Flange Inserts

Discover a softer entry for pumping with the Mompmuir 15mm silicone flange inserts. These flexible, food-safe silicone pieces reduce the nipple tunnel from 24–25 mm to 15 mm, offering a gentler fit without altering the pump's overall suction. With a second-generation two-level taper, milk can flow smoothly while the insert remains unobtrusive in the milk path.

Comfort and compatibility

Crafted from BPA and DEHP-free silicone, these inserts feel pleasant against skin and are simple to install and remove. The material supports repeated use and is compatible with a broad range of popular breast pump brands, making it easier to tailor your flange setup to your preferences.

• Two pieces per pack, designed to be swapped in seconds
• Two-level taper design guides milk flow without blocking
• Maintains the same suction as original pump parts
• Soft silicone adds comfort for extended pumping sessions

Fit and sizing guidance

The 15 mm insert is suitable for nipple diameters around 10–12 mm before pumping, or a nipple-base circumference of about 31.40–37.68 mm. If you’re exploring sizes, Mompmuir offers additional options (15, 16, 17, 18, 19, 20, 21, 22 mm) to match your measurements.

Brand compatibility and real-world use

Designed to work across many popular brands and models—including Elvie Stride, Lansinoh, Medela, Spectra S1/S2, Momcozy S9/S12 and M5/M6/M9, and more—these inserts provide a flexible sizing path when a standard flange feels oversized. They’re a practical choice for caregivers who value a comfortable fit during daily pumping.

Care, safety, and care guidelines

Safe for boiling water and steam, the inserts are top-rack dishwasher safe and feature a seamless design for easy cleaning. They’re BPA- and DEHP-free, offering peace of mind for repeated use.

What you get

Each pack includes two 15 mm flange inserts, ready to swap into your pump setup. With proper care, they can support a smoother pumping rhythm in a variety of settings, from a quiet morning routine to busy days on the go.

Tips for a precise fit

Before pumping, measure the base of the nipple. Use a soft tape measure to confirm diameter or circumference, and try a slightly larger size if needed for a comfortable seal.