Breast Pump Flanges for Spectra Pumps | 2 Pack

$10.99

Compatible with Spectra S1, S2, 9 Plus, and Synergy Gold (SG)

Made From

BPA-Free

Replacement breast shield, also known as a flange, compatible with Spectra S1, S2, 9 Plus, and Synergy Gold pumps. Fits over the breast during pumping and helps guide milk into the bottle for a smooth, comfortable session.

Interchangeable with Spectra pump parts and compatible with Spectra and Aaya wide-neck bottles, this flange is designed to provide the same suction function as the original part.

Size 14mm 16mm 18mm 20mm 24mm 28mm

Clear compatibility

Thoughtful Design

Reliable Quality

How do I measure my nipple diameter to find the right flange size?

Measure right after a pumping session, when your nipple is at its largest, using a flange ruler or measuring tape. Match that number to the nipple diameter column in our sizing guide to find your suggested flange size. If you're between two sizes, sizing up is usually more comfortable.

Which Spectra pumps is this flange compatible with?

This flange is compatible with Spectra S1, S2, 9 Plus, and Synergy Gold (SG) pumps, and works with Spectra Wide-Neck Bottles as well.

How often should I replace my flange?

Most moms find replacing every 3 to 6 months keeps suction and comfort consistent, though this can vary depending on how often you pump. If you notice rubbing, discomfort, or a drop in output, it may be time for a new one regardless of how long it's been.

What if my current flange size doesn't feel right?

Nipple size can change throughout your breastfeeding journey, so a size that worked before may not be the best fit later on. If you're experiencing pain, low output, or visible rubbing at the edges, it's worth re-measuring or checking in with a lactation professional.

Can be cleaned using steam sterilization, boiling water, or microwave steam bags. Allow all parts to dry completely before use.

Made from BPA-free materials. For best comfort and performance, make sure you're using the correct flange size, and consult a lactation professional if you're unsure. Replace regularly to maintain consistent suction and fit.

What are Flanges for

The breast shield, also called a flange, fits over the breast during pumping and helps guide milk into the bottle. Getting the right size matters more than people expect: a flange that's too tight or too loose can affect both comfort and how well your pump draws milk. If you're unsure of your size, our sizing guide is a good place to start, and a lactation professional can help confirm fit if anything still feels off.