24mm Pump Parts for Spectra S1 S2 9 Plus - 4-Set Replacement

In this review of the 24mm pump parts set, the bottom line is simple: this kit is for parents who need a complete, compatible replacement for Spectra-style pumps without paying for OEM parts. The set includes flanges, duckbill valves, backflow protectors, bottles, and tubing so it replaces every item that commonly wears out. The reviewer found the parts to be well matched to Spectra S1 and S2 pumps, comfortable to use, and a clear value for money, while noting a few durability and suction caveats reported by other users.

Key Features

• Complete replacement kit: The package contains 4 24mm flanges, 4 duckbill valves, 4 backflow protectors, 4 bottles and 4 tubing pieces so you can replace all worn parts at once.
• Spectra compatibility: All pieces are designed to be compatible and interchangeable with Spectra S1, S2 and 9 Plus pump parts, making installation straightforward.
• Closed system protection: Backflow protectors and valves form an air tight seal to protect the pump motor and keep milk separate from tubing.
• Leak-proof bottles: Bottles include caps and sealing rings and work with Spectra and commonly used collars and nipples for storage and warming.
• Durable materials and safety testing: Parts are BPA free, comply with FDA food contact guidance, and are safe for dishwasher or steam cleaning.

Who It's For

This kit is best for parents who already own a Spectra S1, S2 or 9 Plus pump and want a full replacement set that matches the original layout and fit, especially those who prefer wide-mouth bottles and need spare tubing and valves. It is also a good option for families managing multiple pumping users who want extra sets ready to swap between sessions.

Parents who need an exact OEM-branded replacement or who require the highest long-term durability from every part may want to compare options, since some users reported issues with flange longevity and occasional loss of suction. Those who want smaller or larger flange sizes should choose a different SKU, as this set is fixed at 24mm.

Pros & Cons

Pros

• Complete kit replaces all common wear parts so you do not have to buy components separately.
• Good fit and compatibility with Spectra pumps, making setup fast and reliable.
• Bottles are leak-proof and versatile for storage, warming, and travel.
• Materials are BPA free and can be cleaned in steam or dishwasher for convenience.

Cons

• Some users reported reduced suction compared with new OEM parts, so performance may vary between pumps.
• Durability concerns have been noted by a few customers who experienced flange cracking after repeated use.

Specifications

Contents	4 flanges, 4 duckbill valves, 4 backflow protectors, 4 bottles, 4 tubing
Flange size	24mm
Compatibility	Spectra S1, S2, 9 Plus compatible
Bottle type	Wide mouth with leak-proof caps and sealing rings
Material safety	BPA free, FDA food contact compliant
Cleaning	Dishwasher safe; steam, boiling water, microwave steam bags
System	Closed system with backflow protection

Our Verdict

The 24mm replacement kit is a practical, cost-effective choice for Spectra S1 and S2 owners who want a full set of spare parts that fit and function like the originals. While a few users reported suction or durability issues, the complete contents, leak-proof bottles and safety-tested materials make this a sensible buy for most parents who need ready spares or a quick full replacement at a lower price than OEM alternatives.

Frequently Asked Questions

Are these parts compatible with Spectra S2 and S1 pumps?
Yes; the kit is made to be interchangeable with Spectra S1, S2 and 9 Plus parts and should fit the same collars and connectors.

Can the bottles be used for storage and warming?
Yes; the wide-mouth bottles include sealing rings and caps, are safe from -20 to 100 degree Celsius and work with bottle warmers and fridge storage.

Do the parts protect my pump from backflow?
Yes; the backflow protectors form a closed system with elastic membranes to maintain suction and keep milk out of the tubing.