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A pair of 21-millimeter ComfortFit® flanges keeps a Lansinoh® breast pump fitted to the body it serves, since the right flange diameter is what turns pumping sessions comfortable and efficient.
Whether replacing worn parts or dialing in a better fit, a spare pair means pumping doesn't pause while parts are hunted down. Available options are listed in the dropdown below.
| Specification | Detail |
|---|---|
| Manufacturer | Emerson Healthcare |
| Brand | ComfortFit® |
| Application | Breast Flange |
| Quantity Per Pack | 2 |
| Manufacturer Part Number | 53510 |
Select your preferred option from the dropdown above. Each option matches the configuration described in this section.
| Option | SKU |
|---|---|
| Pair of 2 | 53510PR |
| Case of 12 | 53510CS |
Manufacturer warranty applies — verify current terms at order time. Compatible with standard accessories in this product category. Contact our support team if you have any questions about compatibility or use.

