Maymom Spectra S1 S2 9 Plus Pump Parts Kit – 20mm Flange, Valve, Tubing & Backflow Protector

Overview

Meet the Maymom Pump Parts Kit, designed to work with Spectra S1, S2, and 9 Plus electric breast pumps. This aftermarket set includes two 20mm flanges, two valves, two backflow protectors, and two tubings. While these are not the original Spectra parts, they are built to interoperate with Spectra components to support a closed-system pumping setup.

What’s in the box

• Two 20mm flanges
• Two valves
• Two backflow protectors
• Two tubings

Compatibility and use

The flanges are compatible with wide-mouth bottles, including Spectra, Avent, and Maymom wide-mouth options. The kit is intended as an interchangeable supplement to Spectra parts, offering flexibility while maintaining a closed system that keeps milk away from the tubing.

Size options and fit

Maymom offers a range of flange sizes to suit different comfort needs. Sizes include 13mm through 32mm, with a size guide in the product photos to help you pick the right match for you.

Care, safety, and quality

• All parts are BPA-free and designed for cleaning with water, steam, boiling water, or microwave steam bags.
• The kit is FDA registered (No. D192499) and Health Canada licensed, with independent test reports available online.
• Includes a closed-system design to minimize contact between milk and tubing.

These Maymom parts provide a practical, budget-conscious option for replacement parts, with a focus on compatibility, cleaning convenience, and regulatory awareness. Use as a supplement to your existing Spectra setup, and verify that the correct flange size is chosen for comfort and milk flow. Always follow the manufacturer’s cleaning guidance and inspect parts regularly for wear.