
Enjoy fast, free delivery, exclusive deals, and award-winning movies & TV shows with Prime
Try Prime
and start saving today with fast, free delivery
Amazon Prime includes:
Fast, FREE Delivery is available to Prime members. To join, select "Try Amazon Prime and start saving today with Fast, FREE Delivery" below the Add to Cart button.
Amazon Prime members enjoy:- Cardmembers earn 5% Back at Amazon.com with a Prime Credit Card.
- Unlimited Free Two-Day Delivery
- Streaming of thousands of movies and TV shows with limited ads on Prime Video.
- A Kindle book to borrow for free each month - with no due dates
- Listen to over 2 million songs and hundreds of playlists
- Unlimited photo storage with anywhere access
Important: Your credit card will NOT be charged when you start your free trial or if you cancel during the trial period. If you're happy with Amazon Prime, do nothing. At the end of the free trial, your membership will automatically upgrade to a monthly membership.
-
-
-
-
-
-
-
7 VIDEOS
-

Image Unavailable
Color:
-
-
-
- To view this video download Flash Player
PUMPMOM-US Replacement Duckbill Valves and Backflow Protector for Spectra, Compatible Pump Parts for Spectra S1 S2 9 Plus and SG (Not Original S2 Accessories)
Learn more
Return this item for free
We offer easy, convenient returns with at least one free return option: no shipping charges. All returns must comply with our returns policy.
Read the full returns policy- Go to Your Orders to start the return
- Select your preferred free shipping option
- Drop off and leave!
Bundles with this item
Purchase options and add-ons
Brand | PUMPMOM-US |
Material | Silicone |
Included Components | Duckbill |
Material Type Free | BPA Free |
Color | White |
About this item
- [Package Contents] The package contains 6 replacement duckbill valves and 2 backflow protectors for the Spectra S2, Spectra S1, and Spectra 9 Plus breast pumps.
- [Replacement Parts for Spectra] This aftermarket part is manufactured by PumpMom and is Not an original Spectra S2 pump Parts.
- [Compatibility] Designed to provide the same suction as OEM ones. PumpMom duckbill valves are suitable for use with Spectra flanges.
- [Safe Material] The replacement parts are made of food-grade silicone and can be safely cleaned using either boiling water or steam.
- [Care Guide] Clean the parts by washing with mild, soapy water, followed by rinsing with clean water. Avoid using abrasive brushes. Use your fingers to gently clean the thin tips. Do not place it in the dishwasher.
Customers usually keep this item
This product has fewer returns than average compared to similar products.
Frequently bought together

Top rated similar items
From the brand

-
PumpMom-us is an innovator, designer and manufacturer of breastfeeding, bottle feeding products. We strongly hope to create seemingly insignificant products that help simplify parents' lives while preserving their personal style.
We are a brand that you can trust 100% because we stand behind our products. Responsible achievement of this goal is at the core of everything we do.
-
Flex Flange Part for Spectra
-
Breast Flange Part for Spectra
-
Tubing, Duckbill Valves
-
Silicone Pump Part for Spectra
-
Other Accessories
-
Other Accessories
Product Description



Why Pumpmom?
Pumpmom is an innovator, designer and manufacturer of breastfeeding, bottle feeding products. We strongly hope to create seemingly insignificant products that help simplify parents' lives while preserving their personal style.
We are a brand that you can trust 100% because we stand behind our products. We are committed to utilizing user feedback to continuously improve our products. Responsible achievement of this goal is at the core of everything we do.
Features
Replaceable backflow protectors and duckbill valves for Spectra pump. Compatible with Spectra S2, Spectra S1, Spectra 9 Plus, Spectra Dew 350.
Designed to replace the duckbill valve and membrane every 1-3 months!
- Designed to provide the same suction as OEM parts
- No milk backflow into the breastpump tube
- Made from medical grade material
- BPA free / DEHP free
Detach the duckbill valve
Step 1: Please hold the duckbill valve with thumb and forefinger knuckle.
Step 2: Please hold the two flat sides of the duckbill valve near the base and pull sideways.
Step 3: DO NOT pull the thin tips of the duckbill.
Product details
- Product Dimensions : 3.54 x 2.76 x 3.15 inches; 3.53 ounces
- Manufacturer recommended age : 5 years and up
- Item model number : PM-1031
- Date First Available : December 27, 2020
- Manufacturer : PumpMom
- ASIN : B08RCGYR2X
- Country of Origin : China
- Best Sellers Rank: #1,379 in Baby (See Top 100 in Baby)
- #66 in Breastfeeding Supplies
- Customer Reviews:
Compare with similar items
This Item ![]() PUMPMOM-US Replacement Duckbill Valves and Backflow Protector for Spectra, Compatible Pump Parts for Spectra S1 S2 9 Plus and SG (Not Original S2 Accessories) | Recommendations | |||||
Try again! Added to Cart Add to cart | Try again! Added to Cart Add to cart | Try again! Added to Cart Add to cart | Try again! Added to Cart Add to cart | Try again! Added to Cart Add to cart | Try again! Added to Cart Add to cart | |
Price | -11% $11.52$11.52 Typical: $12.99 | $7.80$7.80 | $11.39$11.39 | $16.99$16.99 | $32.99$32.99 | -5% $8.54$8.54 List: $8.99 |
Price Per Unit | $11.52 / Count | $1.30 / Count | $11.39 / Count | — | $32.99 / Count | $8.54 / Count |
Delivery | Get it as soon as Saturday, Mar 1 | Get it as soon as Saturday, Mar 1 | Get it as soon as Saturday, Mar 1 | Get it as soon as Saturday, Mar 1 | Get it as soon as Saturday, Mar 1 | Get it as soon as Saturday, Mar 1 |
Customer Ratings | ||||||
Sold By | PumpMom | PumpMom | WanGit | Esther House | Esther House | WanGit |
size | 8 Piece Set | 6 Count | 8PCS | — | 10 Piece Set | 4PCS |
material | Silicone | Silicone | Silicone | Plastic, Silicone | Plastic, Silicone | Silicone |
included components | Duckbill | — | Duckbills Valves*6+Backflow Protectors*2 | Duckbill | Breast Flange, Bottle, Valve | 2*Backflow Protectors+2*Tube |
dishwasher safe | ✗ | ✓ | ✓ | ✓ | ✓ | ✓ |
Videos
Videos for this product
0:42
Click to play video
Honest review of these replacement pump parts
Angela B.
Videos for this product
0:39
Click to play video
Review of Duckbill Valves and Backflow Replacement Parts
Christa
Videos for this product
0:06
Click to play video
Customer Review: Not great, better options on the market
Brooooooke
Videos for this product
0:05
Click to play video
Customer Review: Have to hold parts together during pump
Annie
Important information
Safety Information
Clean the valve before use.
Directions
Please hold the duckbill valve with thumb and forefinger knuckle.Please hold the two flat sides of the duckbill valve near the base and pull sideways.Do not pull the thin tips of the duckbill.
Legal Disclaimer
Statements regarding dietary supplements have not been evaluated by the FDA and are not intended to diagnose, treat, cure, or prevent any disease or health condition.
Looking for specific info?
Customer reviews
Customer Reviews, including Product Star Ratings help customers to learn more about the product and decide whether it is the right product for them.
To calculate the overall star rating and percentage breakdown by star, we don’t use a simple average. Instead, our system considers things like how recent a review is and if the reviewer bought the item on Amazon. It also analyzed reviews to verify trustworthiness.
Learn more how customers reviews work on AmazonReviews with images

Exactly like the ones that came with my Spectra
Top reviews from the United States
There was a problem filtering reviews right now. Please try again later.
- Reviewed in the United States on February 12, 2025For my Spectra perfectly.
- Reviewed in the United States on January 13, 2025This works perfectly and has the same strength as the name brand. The duckbills also fit my Medela pump in style. Would buy again and probably will as I have to replace parts every 60-90 days.
- Reviewed in the United States on December 18, 2024I got these for $11 and they work perfectly with my spectra. The duckbill valve that came with my spectra started falling off very soon after use. When I would be pouring out my milk, the valve would fall into the milk. I've never had a problem with these actually. They have lasted a long time and I would buy these parts again and again. Definitely recommend.
- Reviewed in the United States on January 3, 2025I needed replacement parts for my Spectra wall plug in pump and these were compatible with it and kept the suction working just as good as the parts that came with the pump originally!
- Reviewed in the United States on January 11, 2025I lost the backflow protectors from my spectra but these fit perfect. And they came with extra duckbill valves too.
- Reviewed in the United States on January 3, 2025This was a great purchase and worked wonderfully with my spectra pump!
- Reviewed in the United States on December 28, 2024The small pieces don’t last as long as name brand (you’re supposed to replace when you see any separation) but this is a wonderful solution that is a fraction of the price of name brand. Works just as well!
- Reviewed in the United States on January 5, 2025Work just like the originals, really good product.
Top reviews from other countries
- ChantelReviewed in Canada on August 24, 2023
2.0 out of 5 stars Backflow protectors don’t seal well
The duckbills work alright, but the backflow protectors don’t close together very well and so the back piece that attaches to the tubing pops off a lot.
- salReviewed in Canada on September 18, 2023
1.0 out of 5 stars Flawed product- Backflow protectors don’t stay together
The backflow protectors pop apart easily, meaning that I’ve had to hold them together in order to pump. Extremely inconvenient, as it eliminates the possibility of hands-free pumping.
Disclaimer: While we work to ensure that product information is correct, on occasion manufacturers may alter their ingredient lists. Actual product packaging and materials may contain more and/or different information than that shown on our Web site. We recommend that you do not solely rely on the information presented and that you always read labels, warnings, and directions before using or consuming a product. For additional information about a product, please contact the manufacturer. Content on this site is for reference purposes and is not intended to substitute for advice given by a physician, pharmacist, or other licensed health-care professional. You should not use this information as self-diagnosis or for treating a health problem or disease. Contact your health-care provider immediately if you suspect that you have a medical problem. Information and statements regarding dietary supplements have not been evaluated by the Food and Drug Administration and are not intended to diagnose, treat, cure, or prevent any disease or health condition. Amazon.com assumes no liability for inaccuracies or misstatements about products.