







Price: $12.99
(as of Nov 15, 2025 22:39:57 UTC – Details)
From the brand


Maymom One-piece Flange
Maymom Detachable Shield
Maymom Base Connector
Maymom Flange Insert
Maymom Duckbill Valve
Maymom Storage/Feeding Bottle
Maymom Bottle Caps
Maymom Storage Bag Adapter
Maymom Bottle Converter
Maymom Tubing
Backflow Protector & Diaphragm
Other Products

Maymom cares for each mom
Maymom always cares about mothers’ needs on the path of breastfeeding. For years, we hear mothers’ voice for customized, comfortable and easy-to-use tools.
Maymom makes a wide range of aftermarket pump parts including flange, tubing, duckbill valve, backflow protector, collection bottle, milk storage bag adapter, and various kinds of adapters to bridge different systems of name brand breastpumps.
CONTENTS: 6x duckbill valve and 4 x silicone membrane. Maymom replacement pump parts compatible with spectra duckbill valve and spectra silicone membrane. Not Original Spectra S2, S1, S2 PLUS, S1 PLUS, S3 Parts, Synergy Gold Replacement Pump Parts .
COMPATIBLE with Spectra S1 Spectra S2 Spectra 9 Plus breast pump (The duckbill valves also compatible with Spectra Dew 350). See photo illustrations for compatible breastpumps. Not original Spectra S1 accessories, Spectra S2 accessories, Spectra Duckbill Valves, Spectra Membranes.
SAME SUCTION POWER AS OEM VALVES. The duckbill valves are compatible with Spectra Flange and Maymom flange. The silicone membranes are compatible with Maymom backflow protector (Long, Short and Medium) and Spectra S1 backflow protectors, Spectra S2 backflow protector. Also suitable for Ameda Mya pumps. It does not fit the old version of spectra backflow protector; see photo for details.
OPTIMIZE PUMP PERFORMANCE. Replace silicone membrane, duckbill valve regularly to optimize the performance of your breastpump. Parts available in white, pink, blue, orange to match diffrent colors of your pump.
US FDA Registered Medical Device (No. D192499), Health Canada License (No.26003), Australian Health and Aged Care (ID 463470). Inspected by US FDA. Comply with FDA/EU regulations for plastic materials that contact food. Test reports are conducted by independent lab and available online for reference.
BPA/DEHP FREE. IN RETAIL PACK. Made from BPA-free material. Can be cleaned with water steam, boiling water or microwave-steam bags. Retail packed, sealed by the manufacturer – Maymom, not Original Spectra parts.
13 reviews for Maymom Pump Parts Compatible with Spectra S1 S2 9 Plus Synergy Gold Incl Duckbill Valve Silicone Membrane Not Original Spectra S1 S2 Replacement Pump Parts
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$12.99

Ashlee Brown –
Good replacement for Spectra!
Was very helpful with quick delivery when I lost a single part to my Spectra pump parts. The silicone membrane is a lot more stiff and rigid than the original spectra parts. Otherwise, no problem.
Andreina Galva –
Works well
Great
Jonlie –
Great Replacement Parts
Works well with all my Spectra 1 pieces and I haven’t had any problems with them and am able to use them for the recommended time! Definitely great because you have to switch out pump parts so often
Amy Michel –
Perfect spectra dupe
Love being able to have these shipped to my door. They work just the same as the spectra brand ones
Barbara Baughan –
Replacement Valves
Great product! Decent price.
Melissa –
A must
These work perfectly with my SpeCtra. And they are much more affordable than the name brand parts. Definitely get them.
Miranda C –
Not horrible
I exclusively pump so I need replacement parts rather frequently, these aren’t bad. They are a good price but don’t last as long as name brand, like I said though I do EP so it may be different for someone who doesn’t pump 5+ times a day.
DDD –
It fits
They fit my spectra without issue
Dua ansari –
I want to return them they are wrong size and totally unused
Caroline –
Le duckbill ne fonctionne pas sur mon cup spectra et cela malgré que c’est indiqué que oui…
Ck –
Good value
Mili –
Maymom has great products for Spectra
ESTEPHANY –
Excelente producto, le quedó perfecto a mi extractor Ameda Mya. Llegó en excelente estado, antes de la fecha prevista, además a un excelente precio.