Question 1

I have a spectra s2 pump and meddle bottles. Does this work for wide (spectra) to regular (meddle) collection bottle conversion?

Accepted Answer

No.  This connects to Medela flange components, but the Spectra's shield/flange thing-y is too wide on the bottom.  I tried to connect it "upside down" but the threadded parts are both on the inside (so like trying to connect two female plug-ends) and it did not work.  I have ALL my stuff out bc I'm putting it away (YAY!) today.Here's the deal that I found worked wonders for me (I exclusively pumped).  I use the Spectra S2 (best thing EVER!!) but I had a ton of Medela stuff and I like that you can pick your shield size.  So I used Medela parts on the Spectra S2.  All you need to do that (and use your Medela bottles) is to buy Maymom's little yellow connectors for Spectra-to-Medela.  Presto- DONE!Another tip-- because I pumped so much, I, like so MANY other moms found that the Pumpin' Pals shields was a life saver.  They don't hurt, and you can lean back.  They go well with the Medela pump parts and Spectra S2 setup, because they just go where the shields went.  On Spectra pump parts, since the shield is part of the flange, I don;t know how they get inserted or if it works well.  But hey, if you've got Medela stuff laying around, those little yellow adapters are super-cheap, consider giving them a try! GOOD LUCK!!

Question 2

Does it work with dr brown bottles?

Accepted Answer

No- not the standard (small) neck bottles.  The skinny end goes into your Medela part that brings the milk from the breast into a container.  This would connect that Medela part to a larger-mouthed bottle.  So, without it, you can hook Medela bottles AND Dr. Brown's skinny/normal-necked bottles.  But by adding this, you can connect your Medela setup to Spectra wide-mouth bottles.  I do not know about Dr. Brown's wide-mouth bottles.

Question 3

Do these work with mason jars?

Accepted Answer

sorry.  No.  this one does not work with mason jar.

Question 4

What's the difference with other same products?

Accepted Answer

It depends which other products.  I'm guessing it's for other sizes of bottles.

ASIN	B00IBZ8ADK
Additional Features	Hypoallergenic
Best Sellers Rank	#24,559 in Baby ( See Top 100 in Baby ) #347 in Electric Breast Pumps
Brand	Maymom
Brand Name	Maymom
Color	White
Customer Reviews	4.5 out of 5 stars 795 Reviews
Global Trade Identification Number	04713530099050
Is the item dishwasher safe?	No
Item Weight	0.07 Pounds
Manufacturer	Maymom
Manufacturer Part Number	M017-Rx4
Material	Plastic, Silicone
Material Type	Plastic, Silicone
Model Number	M017-Rx4
Number of Items	1
Size	8 Piece Set
Special Feature	Hypoallergenic
UPC	738435627829
Unit Count	1.0 Count

Conversion Kit Compatible with Medela Breast Pumps (Selected) to be Compatible with Avent Classic Bottles, Avant Natural PP Bottle and speCtra Wide-mouth Bottles Thread Changer; w Sealing Rings

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