Do I need to wash these before using?

I would. I used the Medela steaming bags that you can get to clean the equipment. I don't steam the bottles any more though, they seemed to crack.

Are these compatible with the Freestyle?

I have the pump in style, but I believe all the accessories can be used between all Medela pumps so you should be fine

Will these fit the Spectra S1?

These will fit the narrow neck flanges (medela and spectra compatible), but not the wide neck flanges that come with the spectra pump. I actually prefer the medela valves over the spectra duckbills, so i use the narrow neck flanges with the spectra pump. There is a long backflow protector you can buy.

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Nenesupply Membranes Valves Compatible with Medela Breast Pump Parts Not Original Medela Membrane Replacement Parts Accessories Compatible with Pump in Style Parts Symphony Harmony Hand Pump

Nenesupply Membranes Valves Compatible with Medela Breast Pump Parts Not Original Medela Membrane Replacement Parts Accessories Compatible with Pump in Style Parts Symphony Harmony Hand Pump

Product ID: 272475193

Details

Brand
NENESUPPLY
Material
Bpa Free
Operation mode
Electric
Power source
Manual
Special features
Bpa Free Dehp

💨OEM-level suction performance

♻️BPA & DEHP free safe materials

🛠️12-piece precision fit set

Description

💪 Pump like a pro with parts that keep up with your hustle!

EASY MAINTENANCE - Sanitize safely with boiling water or steam for hygienic pumping
OPTIMAL SUCTION POWER - Delivers the same reliable suction as original Medela parts
PERFECT COMPATIBILITY - Seamlessly fits Pump In Style, Symphony, Swing, Harmony & Mini Electric models
VALUE PACKED REPLACEMENT - 12-piece set ensures you never miss a beat in your pumping routine
HEALTH CONSCIOUS MATERIALS - Crafted from BPA & DEHP free components for worry-free use

Nenesupply’s 12-piece valve and membrane set offers a cost-effective, BPA & DEHP free alternative compatible with multiple Medela breast pump models. Designed for easy cleaning and delivering OEM-level suction, these replacement parts ensure consistent, hygienic performance to support your breastfeeding journey.

Specifications

ASIN	B00GMD8Q5A
Additional Features	Bpa Free,Dehp Free
Best Sellers Rank	#54,625 in Baby Products ( See Top 100 in Baby Products ) #310 in Breast Pump Parts
Brand	NENESUPPLY
Brand Name	NENESUPPLY
Color	White,yellow
Customer Reviews	4.6 out of 5 stars 2,216 Reviews
Included Components	Membrane
Included components	Membrane
Is the item dishwasher safe?	No
Item Weight	0.04 Pounds
Manufacturer	NENESUPPLY
Manufacturer Part Number	N005-4V8M
Material	Bpa Free
Material Type	Bpa Free
Material Type Free	BPA Free
Model Number	N005-4V8M
Number of Items	1
Operation Mode	Electric,Manual
Operation mode	Electric,Manual
Power Source	Manual
Power source	Manual
Product Style	4 Valves + 8 Membranes
Size	12 Piece Set
Special features	Bpa Free,Dehp Free
UPC	738435628642
Unit Count	1 Count

Reviews

M**L

mal estado

viene todo defectuoso

14.06.2026

M**B

Don’t fit my hand pump 😢

They did not fit my hand pump as advertised, really wanted them to work.

16.04.2026

B**I

واضح

تمام

7.11.2023

A**A

Perfect replacement

Perfect replacement for my madela parts

2.06.2026

N**.

Rubbish

I exclusively pumping and I went theough the whole pack within a coupke of days. I got one or 2 decent pumps and then it woukd start to drop. So ended up costing way more then if I had just had medela ones

6.02.2023

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