MilkFlow Replacement Pump Parts Kit for Spectra S1 S2 S9 Plus – 25mm Flange, BPA-Free

MilkFlow Spectra Pump Parts Replacement Kit

Meet a practical replacement kit built to pair with Spectra S1, S2, S9 Plus, and Synergy Gold breast pumps. This all-in-one set covers the essential parts you need to keep your pump performing smoothly between wash cycles. While not original Spectra accessories, the parts are designed to align with standard fittings and bottle necks, offering familiar feel and steady compatibility for busy households.

Each kit includes two 25mm flanges, two duckbill valves with convenient pull tabs, two backflow protectors, two tubes, and two bottles. The selection is purposefully curated for quick swaps, so you can rotate between sets when you're running out the door, during overnight feeds, or when you want a spare ready at daycare or in the car seat pocket.

What’s in the box

• Two 25mm flanges, the most common size for many users
• Two duckbill valves with small pull tabs for easy handling
• Two backflow protectors to help manage milk flow
• Two tubes for reliable connections
• Two wide-neck MilkFlow bottles to pair with the flanges

Durability and ease of use

The upgraded duckbills are built for frequent use, featuring a pull tab that makes replacements straightforward even in low-light situations. The parts are designed to withstand frequent assembly and disassembly without losing their seal and performance.

Find your ideal fit

A wide range of sizes is offered—from 13mm up to 32mm—so you can dial in a snug seal that matches your pumping style. The included 25mm flange serves as a versatile middle-ground option for many users.

Reliable design that minimizes leakage

The flange design is intended to cooperate with Spectra wide-neck bottles and MilkFlow bottles, aiming to reduce spills and drips as you transfer milk. This can help you stay organized whether you're at home, at the office, or on the go.

Travel-ready and compact

Lightweight and space-saving, these replacement parts live easily in a diaper bag, work tote, or car bag. Having a dedicated spare set supports flexibility during family routines and travel.

Safety, care, and maintenance

• Food-grade material, BPA-free
• Top-rack dishwasher safe, boiling safe, and steam safe
• Inspect parts regularly and replace worn pieces to maintain performance