NENESUPPLY 21mm Flanges (2pc) for Spectra S1/S2 – Replacement Breast Pump Parts

Overview

Discover the NENESUPPLY 21mm Flanges, a practical two‑pack designed to be a reliable replacement for your pumping setup. Compatible with Spectra S1, S2, 9 Plus, Synergy Gold, and Luna pumps, these flanges are crafted by NENESUPPLY and are not original Spectra parts. They’re built to fit into your routine with ease, offering a dependable alternative when you need it.

Designed for comfort and compatibility

The wide-mouth design and smoothly angled interior help minimize nipple rubbing while you pump. With a 32 mm long flange tunnel, the fit is approachable for a range of nipple shapes. This set is interchangeable with Spectra valves, backflow protectors, and bottles, and it also works with NENESUPPLY bottles for a cohesive system.

• Wide-mouth flanges that support a comfortable seal and easy attachment to standard Spectra components.
• Interchangeable with backflow protectors and bottles for flexible assembly at home or on the go.

Sizes and fit

Flanges are offered in multiple sizes, including 15, 17, 19, 21, 24, 27, and 30 mm, so you can choose the option that best matches your pumping rhythm. The 21 mm size sits in a versatile middle ground for many users, balancing capacity and comfort.

Care, safety, and materials

These parts are dishwasher safe on the top rack and can be sterilized using boiling water, steam, or microwavable bags. They are BPA free and DEHP free, and they meet FDA guidelines for food contact materials. Independent lab testing confirms safety suitability for frequent use.

Performance and use cases

The suction of these flanges aligns with the expectations of original pump parts, providing a familiar feel while you pump. They form a secure seal with compatible bottles and backflow protectors, making them suitable for regular replacement in your pumping setup.

What you get

• Two 21 mm flange pieces
• A clear note that these are not original Spectra parts; they are compatible replacement options