Bottle Converter Thread Changer Compatible with Spectra S1 S2 Pumps Dr. Brown Narrow Neck Medela Bottles Not Original Spectra Pump Parts Use as Adapter
★ 4.2 (218 Amazon ratings)$7.99
See it on Amazon →The verdict
These thread adapters offer comfortable, versatile compatibility across multiple pump brands with a soft silicone edge, though durability concerns and occasional sizing issues have been reported.
What parents love
- • silicone edge reduces chafing
- • compatible with multiple pumps
- • comfortable fit during use
- • durable plastic construction
Worth knowing
- • silicone separates from plastic
- • rubber causes skin pulling
- • durability issues with extended use
Specs
| Bpa Free | yes |
| Material | Polypropylene |
| Capacity Ml | 300 |
| Closed System | yes |
| Package Quantity | 4 |
| Package Weight Oz | 1.76 |
| Package Dimensions In | 5.24 x 3.7 x 1.97 |
| Compatible Bottle Types | Medela, Ameda, Dr. Brown standard neck |
| Compatible Pump Flanges | Spectra S1, Spectra S2, Avent |
How we read it: distilled from 218 Amazon reviews, last checked July 24, 2026. We carry no affiliate links and no brand pays to be featured — here's how we work.
Is this actually right for you?
This pick might not fit your home, your budget, or your climate. Answer a few quick questions and get a checklist matched to your actual family — free, no account needed.
Build my checklist