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Find the right fit

How to find parts that fit your pump.

Pump parts are made for specific models, so a few quick checks make sure what arrives fits the first time.

01

Find your pump's model

Your pump's brand and model name are printed on the motor and on the box. Parts are made for specific pumps, so start there.

02

Check your flange size

Flanges come in sizes measured in millimeters. The size that came with your pump isn't right for everyone, so confirm yours before you reorder.

03

Shop your brand

Pick your brand above to see the flanges, valves, tubing, and bottles made for your pump.

04

Ask if you're unsure

Not sure a part fits? Our care team can help you find the right one for your pump's model.

Restock replacement parts through insurance

Through our MilkZoom program, many moms get breast pump replacement parts and milk storage bags covered by insurance every month. We ship parts for your specific pump and bill your plan directly, so most moms have no out-of-pocket cost. Coverage varies by plan.

Learn about MilkZoom
Questions, answered

Pump parts,
explained.

What moms ask us most about finding parts that fit.

Contact our care team

Usually not. Flanges, valves, membranes, and tubing are designed for specific pumps, and a part from another brand may not seal properly, which can weaken suction. Even within one brand, different models can use different parts. Shop by your pump's brand, and contact our care team if you're not sure a part fits your model.

Start with the brand and model name printed on your pump's motor or its box, then choose your brand above to see the parts made for it. Still not sure? Contact our care team and we'll help you find the right part.

Flange sizes are measured in millimeters, and most brands make several sizes. The size that came with your pump isn't right for everyone, so if pumping feels uncomfortable, a different size may help. Our IBCLC-led pumping classes walk through how to measure and choose a flange size.

Yes. Every product in our brand collections is made by that pump's own manufacturer. We don't stock third-party or generic substitutes in them.

We carry parts for the brands above. If your pump is from another brand, contact our care team and we'll help you find out what's available for your model.