The Spectra S1 takes the Spectra duck valves (2-pack) as its valve; replace it every 2 months; Australian sellers list it from A$2.00 each as of 28 October 2026. Fitment confirmed against the manufacturer's compatibility list.
Your breast pump
Spectra S1
Breast pump
Confirmed against Spectra's listConfirmed against Spectra's own compatibility list
Not yours? ChangeSave it · remind me every 2 months
Takes the Spectra duck valve
duck valves (2-pack) · replace every 2 months · check the code on your old part before ordering.
Your breast pump
Breast pump
Confirmed against Spectra's listConfirmed against Spectra's own compatibility list
Takes the Spectra duck valve
Valve · every 2 months · check the code on your old part.
Other Spectra breast pumps that take the Spectra duck valve
GenuineGenuine Spectra
$7.50 each
2-pack $15.00
Spectra Baby Australia · 1 NovLowest genuine · Spectra Baby Australia · checked 1 Nov
CompatibleCompatible option
$2.00 each
10-pack $19.99
Amazon AU · 28 OctAmazon AU · checked 28 Oct
Check sellerCheck seller details
Genuine: made by Spectra. Compatible: another brand.Genuine is made by Spectra. Compatible is made by another brand. Check the seller's page for the size and models it fits.
Lowest compatibleLowest compatible price · $2.00 each · 10-pack $19.99
Amazon AU. Compare with genuine below. Some links earn us a commission. Some seller links earn us a commission, at no extra cost to you.
Other parts this breast pump takes
- Spectra backflow protectorOpen Amazon AU$8.50 each · 2-pack $16.99
The backflow protector. Separate from the valve. Replace every 3 months.
Compare 2 sellers - Spectra Handsfree Cup backflow protectorOpen Spectra Baby Australia$19.00
The backflow protector. Only for Spectra's Handsfree Cups; the standard breastshield takes the standard backflow protector Separate from the valve. Replace every 3 months.
- Spectra backflow protector diaphragms (2-pack)Open Amazon AU$3.75 each · 4-pack $14.99
The silicone diaphragm. Separate from the valve. Replace every 2 months.
Compare 2 sellers - Open Amazon AU$6.45 each · 2-pack $12.90
Compare 4 listings from 2 sellers
AUD, before delivery. Each price shows when it was checked.
Compatible options
3 listings from 1 seller
Opens Amazon AU in a new tab. Their page is the source of truth for price, delivery and returns.
Not due yet?
Get a nudge when your valve is due — it's every 2 months. One email two weeks before, no newsletter. Manage or stop it anytime.
How to change the valve in your Spectra S1
Watch the guide or follow the steps.
- 1Wash your hands and take the breastshield off the bottle.
- 2Remove the old duck valve by holding it at the base and gently rocking it loose; don't pull it by the tip.
- 3Wash the new valves and, before first use, sterilise them as Spectra's manual says.
- 4Press the new valve firmly into the bottom of the breastshield.
- 5Screw the breastshield back onto the bottle and check the suction feels normal.
Every number this part goes by
- Retail name:
- 8809108012388
- Retail name:
- Spectra duck valve
- Retail name:
- Spectra duck valves
- Retail name:
- Spectra duckbill valve
- Retail name:
- Spectra duckbill valves
- Retail name:
- Spectra valve
Sellers list any of these; they are the same part.
About your Spectra S1
Spectra breast pump. Its valve is the duck valves (2-pack), part Spectra duck valve, changed every 2 months.
Other valves the maker lists for this breast pump: Spectra Handsfree Cup valves (2-pack) (every 2 months). Only for Spectra's Handsfree Cups, which pair with any Spectra pump; the standard breastshield takes the duck valve.
Also in this breast pump:
- Spectra backflow protector (every 3 months), Spectra backflow protector diaphragms (2-pack) (every 2 months), Spectra replacement tubing (2-pack).
- Spectra Handsfree Cup backflow protector (every 3 months). Only for Spectra's Handsfree Cups; the standard breastshield takes the standard backflow protector.
Where the model number is: The model name is printed on the motor unit or its base, and on the box. Wearable pumps also show it in the maker's app.
Fits these 7 Spectra models
Common questions
- Which valve fits the Spectra S1?
- The Spectra S1 takes the Spectra duck valves (2-pack).
- How often should I replace the valve in my Spectra S1?
- Every 2 months, or sooner if it looks worn.
- Where can I buy the Spectra duck valve in Australia?
- We track 2 Australian sellers for the Spectra duck valve; the lowest listed price when we last checked was A$2.00 at Amazon AU. Prices are re-checked daily and dated on this page.
- How do I fit the Spectra duck valve in a Spectra S1?
- No tools, a few minutes: 5 steps, listed on this page with the replacement video where the maker has one.
- What happens if I don't change it?
- A stretched or torn valve or membrane lets the suction drop, so each session takes longer.
- Is there anything to reset afterwards?
- No reset: the pump has no reminder for this part, so set your own.
Something looks wrong with the S1 match? . Reports go to a person, not a bot.