I don't need the membranes (I have 10+ spares), can I just get the o-rings?

sorry. that is the only package we sell.

Where do the o rings go?

They go on to the pump handle diaphragm stem. If you ever lose suction it's most likely because one of these came off. Search for "medela hand pump o ring" images in your web browser to see a visual

What are the dimensions of the O-rings?

I don't know the exact measurements of the O-rings but I do know that if you are trying to replace a part for a Medela manual breast pump if it's perfectly.

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Fully operational. Shipping worldwide, on schedule.Customs & duties included in the price

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Replacement Parts for Medela Harmony Manual Pump; 4 O-Rings and 2 Membranes

Product ID: 48780742

Details

Brand
Maymom
Colour
White
Dishwasher safe?
No
Item weight
0.2 Ounces
Material
Silicone
Material Type Free
BPA Free

🔄4 O-rings for seamless pump fit

⚙️2 durable membranes for peak suction

🛡️BPA & DEHP-free safe silicone

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3384 som

Duties & taxes included

In stock

Sold byAmazon KyrgyzstanDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

🔧 Keep your pump flawless, keep your flow unstoppable!

TOP RATED BY PARENTS - Join thousands of satisfied users who trust these parts to keep their pumping routine smooth.
TRUSTED QUALITY FIT - Designed specifically for Medela Harmony, ensuring hassle-free installation and reliable use.
HEALTH FIRST MATERIALS - Crafted from BPA and DEHP-free silicone to keep your baby’s safety front and center.
COMPLETE REPLACEMENT KIT - Includes 4 O-rings and 2 membranes—everything you need to maintain optimal pump function.
PERFECT PUMP PERFORMANCE - Restore your Medela Harmony pump’s efficiency with precision-fit O-rings and membranes.

This replacement kit for the Medela Harmony manual breast pump includes 4 silicone O-rings and 2 membranes made from BPA and DEHP-free materials. Engineered for a perfect fit and durability, these parts ensure consistent suction and pump performance, trusted by thousands of parents worldwide.

Specifications

ASIN	B016Y51X5U
ASIN	B016Y51X5U
Best Sellers Rank	6,979 in Baby Products ( See Top 100 in Baby Products ) 138 in Breast Pumps & Accessories
Brand Name	Maymom
Colour	White
Country Of Origin	Taiwan
Country of origin	Taiwan
Customer Reviews	4.7 4.7 out of 5 stars (1,587)
Customer reviews	4.7 4.7 out of 5 stars (1,587)
Global Trade Identification Number	00760488883082
Is discontinued by manufacturer	No
Is the item dishwasher safe?	No
Item Weight	0.2 Ounces
Item model number	M022-4O2M
Manufacturer	Maymom
Manufacturer	Maymom
Manufacturer Part Number	M022-4O2M
Material Type	Silicone
Material Type Free	BPA Free
Model Name	Maymom O-Ring and Membrane for Medela Harmony
Model Number	M022-4O2M
Number of Items	1
Operation Mode	Manual
Product Dimensions	7.5 x 5 x 0.4 cm; 5.67 g
Size	One Size
Special Features	Bpa Free
UPC	760488883082
Unit Count	1 count

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