Maymom Pump Parts for Spectra S1/S2 9 Plus — 15mm Flange, Valve, Backflow Protector, Tubing Kit

Maymom offers an aftermarket pump parts kit designed to pair with Spectra S1, S2, and 9 Plus electric breast pumps. Made by Maymom, these parts are not the original Spectra components, but they’re designed to be interchangeable with Spectra parts for flexible, at-home pumping setup.

Designed with real-life pumping in mind, the kit includes two 15 mm flanges, two valves, two backflow protectors, and two tubings. The 15 mm flanges connect to wide-mouth bottles, expanding your options for storage and feeding beyond the bottle you currently use. This kit works with Spectra bottles and Maymom wide-mouth bottles, but is not compatible with other wide-neck bottles. The closed system design keeps milk away from the tubing, helping you keep parts cleaner between sessions.

What’s inside the kit

• 2 x 15 mm flanges
• 2 x valves
• 2 x backflow protectors
• 2 x tubings

Key benefits and use cases

• Interchangeable with Spectra pump parts for flexible compatibility across models
• Wide-mouth bottle compatibility broadens storage and feeding options
• Multiple flange sizes available (e.g., 13–32 mm); refer to the size guide to pick the right fit
• Retail pack with BPA-free components; cleaning is simple with water, steam, or boiling water
• Lab-tested; reference reports are available for your records

Care and use: All parts are designed for easy cleaning and safe handling. This is an aftermarket option, not the original Spectra parts, but it is built to support a convenient, at-home pumping routine.

Note: flange size availability varies; please check the size guide in the product photos to select the right size for you.