









🍼 Upgrade your pump game with flawless fit & safety — because your flow deserves the best!
Nenesupply’s 21mm flange and duckbill valve set offers a high-quality, BPA-free replacement compatible with Spectra S1, S2, and 9 Plus breast pumps. Engineered for OEM-level suction and easy installation, these parts provide a hygienic, customizable pumping experience trusted by thousands of moms.








































| ASIN | B07NBR778K |
| Additional product features | Flanges and Valves for Spectra S1 S2 9 Plus Synergy Gold |
| Batteries required | No |
| Customer Reviews | 4.7 4.7 out of 5 stars (846) |
| Date First Available | 22 Jun. 2016 |
| Dishwasher safe | No |
| Item Weight | 18 g |
| Item model number | Flange 21mm + Valves |
| Material Type | Polypropylene Silicone |
| Material-free | BPA Free, DEHP Free |
| Model Number | Flange 21mm + Valves |
| Product Dimensions | 10 x 15 x 11 cm; 18 g |
| Style | Compatible |
J**.
These worked perfectly with my Spectra. It was nice to find these flanges at such a good price that also worked with the pump I was using.
G**N
These fit pretty well. No leaking and built great. Love supporting small biz too. For any flange I’d recommend keeping it at a slight angle lower so milk flows right down.
A**O
I was in need of a second set of flanges as I am exclusively pumping and didn’t want to constantly clean pump parts. I found these after a quick search and they’re perfect! I haven’t had any issues. They fit perfectly on my Spectra pump. The valves can be a little difficult to remove but a little twist at the base does the trick. Will purchase again when I’m in need of replacement parts!
#**M
The parts work great with my Spectra pump and are more affordable than replacements directly from Spectra. Have held up to daily use and washing and no problems with warping when sanitizing.
P**E
I enjoy these, I needed a smaller size than what came with my pump. The fit is similar to the Spectra brand and they are easier to attach to the pump at the backflow protector. The valve was a little hard to get off the first few times, but it got easier as I've used it. I pump multiple times a day and have had this for a few weeks now and it still works great!
Trustpilot
1 month ago
1 week ago