KAIYIV Spectra Replacement Parts Kit for S1/S2 Pumps — 15mm Flange, Duckbill Valve, Tubes & Wide-Neck Bottles (Not Original)

Keeping your pumping routine smooth and hygienic often means having reliable replacement parts on hand. The KAIYIV Spectra Replacement Parts Kit is a complete, compatible option designed for Spectra S1/S2 pumps and compatible with 9 Plus models. This kit is intended to help you swap worn components quickly, reduce downtime, and maintain an efficient pumping flow without relying on original S2/S1 accessories.

What’s inside this replacement kit matters for everyday usability. You’ll receive two wide-mouth flanges (15mm), two duckbill valves, two backflow protectors, two flexible tubes, and two wide-neck bottles with screw rings and sealing discs. The organized set makes part replacements easier after rough handling, frequent cleaning, or long-term use. While not an original Spectra package, the parts are designed to align with Spectra pumps and maintain a similar pumping cadence when swapped in.

Size options designed for comfort

• 13mm, 15mm, 17mm, 18mm, 19mm, 21mm, 24mm, 26mm, 28mm, 30mm flange sizes—to help you find a comfortable fit.

Consistent suction and comfortable design

Expect stable suction strength across sessions with wide-neck flanges featuring smooth edges. The design aims to reduce nipple discomfort and support a relaxed pumping experience whether you’re at home, at work, or doing nighttime pumping.

Safe materials and easy care

• All parts are BPA-free and DEHP-free, crafted from food-grade silicone and PP for peace of mind.
• Parts can be sterilized via boiling water, steam, or microwave steam bags to suit your routine.

Storage-friendly bottles and organization

Each wide-neck bottle holds up to 180ml, which is convenient for milk storage or small baby portions. The included sealing discs can be labeled with dates or names to help you stay organized in daily storage tasks.

Easy to clean and compatible

The detachable design allows quick cleaning and reassembly, while smooth surfaces minimize milk residue buildup. The kit is designed to be interchangeable with Spectra S1, S2, and 9 Plus pumps, offering a practical alternative when you need to refresh parts without interrupting your routine.