Lansinoh ComfortFit Breast Pump Flange Inserts
The Lansinoh ComfortFit Breast Pump Flange Inserts comes with 3 flange sizes, per Lansinoh. Silicone inserts that sit inside Lansinoh flanges to reduce the tunnel size, sold two per pack in 17, 19 or 21 mm.
- $9.99List price
How the ComfortFit Breast Pump Flange Inserts stacks up
Against the 34 pump parts and flange inserts we track. The shaded band is where the middle half of them fall; the dot is this one.
Within the typical range for pump parts and flange inserts (3 to 5).
Below the typical range for pump parts and flange inserts ($10.99 to $52.49).
What sets the ComfortFit Breast Pump Flange Inserts apart
Measured against the 34 pump parts and flange inserts we compare, from each maker's published specs.
- Flange sizes in the box: 3in the middle half of the 17 pump parts and flange inserts that publish it (3 to 5)
Next to its closest matches
- Zomee Universal InsertsNext to it, the ComfortFit Breast Pump Flange Inserts is 2 fewer sizes.
- Ameda CustomFit Breast Pump FlangesNext to it, the ComfortFit Breast Pump Flange Inserts is 2 fewer sizes.
- Ameda Universal Soft Breast Pump Flange InsertsNext to it, the ComfortFit Breast Pump Flange Inserts is 3 fewer sizes.
Fit and use
As Lansinoh lists it.
| Sizes | 17 mm, 19 mm, 21 mm |
|---|---|
| Material | 100% silicone |
| Dishwasher (maker) | Yes |
Fits these pumps
Lansinoh says it fits: Lansinoh NaturalWave, Signature Pro, Signature Comfort, Manual Pump and Extra Pumping Set; not compatible with Thrive 2-in-1.
Listed features
- Three small sizes
- Two per pack
Worth checking
- Only for specific Lansinoh pumps
- Does not fit the Thrive 2-in-1
Where to buy the ComfortFit Breast Pump Flange Inserts
Prices and availability change. We may earn a commission from some links.
- Check for recalls: Search the agency's recall list with the model number and date code from the label: FDA recalls list.
- Breastfeeding and pumping: see the AAP's breastfeeding pages and the FDA's breast pump page. Check the label and the maker's instructions, and ask your pediatrician about your child.
Full specs
| Lansinoh ComfortFit Breast Pump Flange Inserts | |
|---|---|
| Type | Pump part or flange insert |
| List price | $9.99 |
| Fits | Lansinoh NaturalWave, Signature Pro, Signature Comfort, Manual Pump and Extra Pumping Set; not compatible with Thrive 2-in-1 |
| Sizes | 17 mm, 19 mm, 21 mm |
| Material | 100% silicone |
| BPA-free | Yes, per the maker |
| Dishwasher | Yes, per the maker |
| Maker's use notes | Not compatible with the Thrive 2-in-1 Breast Pump. Maker suggests replacing inserts every 2-3 months. |
More parts
- ZomeeUniversal Inserts$95 flange sizes$9.99
- AmedaCustomFit Breast Pump Flanges$105 flange sizes$10.99
- AmedaUniversal Soft Breast Pump Flange Inserts$116 flange sizes$11.99
- Frida MomBreast Pump Flange Insert$73 flange sizes$7.99
- WillowSizing Inserts$196 flange sizes$19.99
- WillowBreast Pump Sizing Kit$245 flange sizes$24.99
- BodilyCushy Silicone Breast Pump Flanges$278 flange sizes$27
- PapablicDuckbill Valves for Spectra and Medela$9$9.99
Where these specs come from
- lansinoh.com/products/comfortfit%C2%AE-breast-pump-flange-inserts
- lansinoh.com/products/comfortfit%C2%AE-breast-pump-flange-inserts
Last checked 2026-11-05. Spot something wrong? Tell us. Read our editorial and safety policy and corrections.